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Finding the Fourth Proportional to 113,578.60, 156,739.50 and 62,593.15

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Solution

The fourth proportional to 113,578.60, 156,739.50 and 62,593.15 is: 86,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,578.60 : 156,739.50 = 62,593.15 : x
  2. Step 2: Convert to fraction form
    113,578.60/156,739.50 = 62,593.15/x
  3. Step 3: Cross multiply
    113,578.60x = 156,739.50 × 62,593.15
  4. Step 4: Simplify right side
    113,578.60x = 9,810,819,034.43
  5. Step 5: Solve for x
    x = 9,810,819,034.43/113,578.60
  6. Step 6: Final answer
    x = 86,379.12

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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.