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Finding the Fourth Proportional to 72,253.95, 108,397.38 and 38,973.27

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Solution

The fourth proportional to 72,253.95, 108,397.38 and 38,973.27 is: 58,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,253.95 : 108,397.38 = 38,973.27 : x
  2. Step 2: Convert to fraction form
    72,253.95/108,397.38 = 38,973.27/x
  3. Step 3: Cross multiply
    72,253.95x = 108,397.38 × 38,973.27
  4. Step 4: Simplify right side
    72,253.95x = 4,224,600,358.03
  5. Step 5: Solve for x
    x = 4,224,600,358.03/72,253.95
  6. Step 6: Final answer
    x = 58,468.78

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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.