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Finding the Fourth Proportional to 132,046.20, 198,069.30 and 124,829.10

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Solution

The fourth proportional to 132,046.20, 198,069.30 and 124,829.10 is: 187,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,046.20 : 198,069.30 = 124,829.10 : x
  2. Step 2: Convert to fraction form
    132,046.20/198,069.30 = 124,829.10/x
  3. Step 3: Cross multiply
    132,046.20x = 198,069.30 × 124,829.10
  4. Step 4: Simplify right side
    132,046.20x = 24,724,812,456.63
  5. Step 5: Solve for x
    x = 24,724,812,456.63/132,046.20
  6. Step 6: Final answer
    x = 187,243.65

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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.