If you drop some presumptions about the players you can go even faster-- Player 1: Roll a 3, 5, 6, 8, 9, 11 or 12. Don't purchase, so it goes to auction. In auction player 2 buys for 100% of their cash. Player 2: Rolls a 4, lands on income tax. Game over.
You would pay 10% of your wealth for income tax, so you could always mortgage your one property and pay the 10% of the mortgage value.
[edit] Per the Monopoly Wikia the British edition was always a fixed amount and the US edition as well since 2008.