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Finding the Fourth Proportional to 132,081.40, 198,122.10 and 43,337.80

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Solution

The fourth proportional to 132,081.40, 198,122.10 and 43,337.80 is: 65,006.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,081.40 : 198,122.10 = 43,337.80 : x
  2. Step 2: Convert to fraction form
    132,081.40/198,122.10 = 43,337.80/x
  3. Step 3: Cross multiply
    132,081.40x = 198,122.10 × 43,337.80
  4. Step 4: Simplify right side
    132,081.40x = 8,586,175,945.38
  5. Step 5: Solve for x
    x = 8,586,175,945.38/132,081.40
  6. Step 6: Final answer
    x = 65,006.70

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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.