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Finding the Fourth Proportional to 113,058, 156,020.04 and 62,761.68

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Solution

The fourth proportional to 113,058, 156,020.04 and 62,761.68 is: 86,611.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,058 : 156,020.04 = 62,761.68 : x
  2. Step 2: Convert to fraction form
    113,058/156,020.04 = 62,761.68/x
  3. Step 3: Cross multiply
    113,058x = 156,020.04 × 62,761.68
  4. Step 4: Simplify right side
    113,058x = 9,792,079,824.07
  5. Step 5: Solve for x
    x = 9,792,079,824.07/113,058
  6. Step 6: Final answer
    x = 86,611.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.