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Finding the Fourth Proportional to 132,593.52, 182,979.08 and 72,977.52

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Solution

The fourth proportional to 132,593.52, 182,979.08 and 72,977.52 is: 100,708.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,593.52 : 182,979.08 = 72,977.52 : x
  2. Step 2: Convert to fraction form
    132,593.52/182,979.08 = 72,977.52/x
  3. Step 3: Cross multiply
    132,593.52x = 182,979.08 × 72,977.52
  4. Step 4: Simplify right side
    132,593.52x = 13,353,359,470.28
  5. Step 5: Solve for x
    x = 13,353,359,470.28/132,593.52
  6. Step 6: Final answer
    x = 100,708.99

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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.