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Finding the Fourth Proportional to 71,365.20, 106,932.60 and 59,614.80

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Solution

The fourth proportional to 71,365.20, 106,932.60 and 59,614.80 is: 89,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,365.20 : 106,932.60 = 59,614.80 : x
  2. Step 2: Convert to fraction form
    71,365.20/106,932.60 = 59,614.80/x
  3. Step 3: Cross multiply
    71,365.20x = 106,932.60 × 59,614.80
  4. Step 4: Simplify right side
    71,365.20x = 6,374,765,562.48
  5. Step 5: Solve for x
    x = 6,374,765,562.48/71,365.20
  6. Step 6: Final answer
    x = 89,325.97

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1.5x scale

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.