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Finding the Fourth Proportional to 99,073.92, 148,357.14 and 54,651.30

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Solution

The fourth proportional to 99,073.92, 148,357.14 and 54,651.30 is: 81,836.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,073.92 : 148,357.14 = 54,651.30 : x
  2. Step 2: Convert to fraction form
    99,073.92/148,357.14 = 54,651.30/x
  3. Step 3: Cross multiply
    99,073.92x = 148,357.14 × 54,651.30
  4. Step 4: Simplify right side
    99,073.92x = 8,107,910,565.28
  5. Step 5: Solve for x
    x = 8,107,910,565.28/99,073.92
  6. Step 6: Final answer
    x = 81,836.98

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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.