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Finding the Fourth Proportional to 99,373.91, 149,124.11 and 36,187.97

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Solution

The fourth proportional to 99,373.91, 149,124.11 and 36,187.97 is: 54,304.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,373.91 : 149,124.11 = 36,187.97 : x
  2. Step 2: Convert to fraction form
    99,373.91/149,124.11 = 36,187.97/x
  3. Step 3: Cross multiply
    99,373.91x = 149,124.11 × 36,187.97
  4. Step 4: Simplify right side
    99,373.91x = 5,396,497,892.40
  5. Step 5: Solve for x
    x = 5,396,497,892.40/99,373.91
  6. Step 6: Final answer
    x = 54,304.98

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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.