Hongtai Shopping Center increased the price of a certain product by 50% of the purchase price, and launched the "20% discount big bargain" activity. As a result, each product still made a profit of 20 yuan. How much is the purchase price of this product?
宏泰商场将某种商品按进价的50%加价后，开展"八折优惠大酬宾"活动，结果每件商品仍获利20元，这种商品的进价是多少元？
<result>100</result>