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Finding the Fourth Proportional to 61,123.68, 91,711.60 and 25,593.28

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Solution

The fourth proportional to 61,123.68, 91,711.60 and 25,593.28 is: 38,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,123.68 : 91,711.60 = 25,593.28 : x
  2. Step 2: Convert to fraction form
    61,123.68/91,711.60 = 25,593.28/x
  3. Step 3: Cross multiply
    61,123.68x = 91,711.60 × 25,593.28
  4. Step 4: Simplify right side
    61,123.68x = 2,347,200,658.05
  5. Step 5: Solve for x
    x = 2,347,200,658.05/61,123.68
  6. Step 6: Final answer
    x = 38,400.84

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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.