From Mt.Gox's FAQ:
Q. Do you keep independent ask/bid tables for different currencies?
A. No, ask/bid tables for different currencies are not independent. All currencies are relative to whichever currency has the highest volume, which is based on said currencies current market price in bitcoin. Every trade is in one pool and in fact, not are not separate currency markets. This allows users the added benefit of trading in "the greater market" -in currencies they understand- while not limiting them to smaller currency markets.
For example, if a buy order for bitcoins is placed in EUR, the order can be executed against another user selling bitcoins in any currency and not necessarily only against another user selling bitcoins in EUR.
Topic: Same buy amounts in EUR and USD (Read 667 times)
why not, he's buying btc 
IDK, a guy wanted to split his buying half and half between the two markets but forgot to take into account that EUR is worth more than a USD?
whatever does it matter?
whatever does it matter?
USD:
mtgox 346.67 3 minutes ago 99.22
EUR:
mtgox 346.67 4 minutes ago 73.00
why ?
mtgox 346.67 3 minutes ago 99.22
EUR:
mtgox 346.67 4 minutes ago 73.00
why ?
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