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Finding the Fourth Proportional to 80,884.92, 121,351.48 and 58,446.30

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Solution

The fourth proportional to 80,884.92, 121,351.48 and 58,446.30 is: 87,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,884.92 : 121,351.48 = 58,446.30 : x
  2. Step 2: Convert to fraction form
    80,884.92/121,351.48 = 58,446.30/x
  3. Step 3: Cross multiply
    80,884.92x = 121,351.48 × 58,446.30
  4. Step 4: Simplify right side
    80,884.92x = 7,092,545,005.52
  5. Step 5: Solve for x
    x = 7,092,545,005.52/80,884.92
  6. Step 6: Final answer
    x = 87,686.86

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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.