Master Li made a batch of parts. On the first day, he produced 48 pieces. On the second day, he produced 25% more than the first day. On the third day, he produced 5% more parts than the second day. The total number of parts produced in three days accounted for 90% of the total number of parts. , how many parts are there in this batch.
李师傅做一批零件，第一天生产了48个，第二天比第一天多生产25%，第三天比第二天多生产5%，三天共生产零件占零件总数的90%，这批零件有多少个．
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">48 * (5/4)</gadget>
<output>60</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 + (1/20)</gadget>
<output>21/20 = around 1.05</output>

<gadget id="calculator">60 * (21/20)</gadget>
<output>63</output>

<gadget id="calculator">48 + 60 + 63</gadget>
<output>171</output>

<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">171 / (9/10)</gadget>
<output>190</output>

<result>190</result>