Very close proximity to Cesarea for those in Galilee, and generally being right in the middle of a narrow strip of land that joins continents, and so was heavily travelled by the Romans, Greeks, and others. Israel was an occupied country. You couldn't get by as a merchant if you couldn't talk to your potential customers.
Also remember when Jesus was crucified, the sign calling Him King of the Jews was posted in those three languages. Right in the heart of Israel, Jerusalem. I've been there. It's a small country. Lots of cross-connecting between various people groups, even now. But now of course they all speak English. Latin not so much. :)
Peace,
SR
I would not characterize the distance from the Galil to Caesaera as close proximity, not even via Egged.