You think the first two rhyme and the third rhymes with a number, then listen to several speakers. Just as "to" has morphed into "tuh", "for" has morphed into "fer", rhyming with the first two words. See "How do you pronounce two, too, and to?"
I was reminded of this when my son, a manager in a large company, recently said "fer" for "for" in casual conversation.
I have begun saying that there is no "correct" language, only that which people use. We constantly see words or expressions that were once "unacceptable" have become commonplace. When I was in grade school, teachers reminded us that "kid" was a baby goat, not a young person. Now teachers talk about their students as their kids.
We don't need a tower of Babel to create different languages. We do it all by ourselves, both in the short term as above but in the long term such as the various Romance languages or the divergence (and melding) of American and British English.