John decides to start collecting art. He pays the same price for his first 3 pieces of art and the total price came to $45,000. The next piece of art was 50% more expensive than those. How much did all the art cost? Think carefully first, then make a decision:
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The first 3 pieces each cost 45000 / 3 = $15,000. So the next piece was 15,000 * .5 = $7,500 more expensive. That means it cost 15,000 + 7,500 = $22,500. That means in total he spent 45,000 + 22,500 = $67,500. So, the answer is 67500.
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