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Finding the Fourth Proportional to 57,640.80, 86,401.76 and 41,806.16

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Solution

The fourth proportional to 57,640.80, 86,401.76 and 41,806.16 is: 62,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,640.80 : 86,401.76 = 41,806.16 : x
  2. Step 2: Convert to fraction form
    57,640.80/86,401.76 = 41,806.16/x
  3. Step 3: Cross multiply
    57,640.80x = 86,401.76 × 41,806.16
  4. Step 4: Simplify right side
    57,640.80x = 3,612,125,802.84
  5. Step 5: Solve for x
    x = 3,612,125,802.84/57,640.80
  6. Step 6: Final answer
    x = 62,666.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.