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Finding the Fourth Proportional to 132,404.10, 198,691.20 and 73,282.20

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Solution

The fourth proportional to 132,404.10, 198,691.20 and 73,282.20 is: 109,970.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,404.10 : 198,691.20 = 73,282.20 : x
  2. Step 2: Convert to fraction form
    132,404.10/198,691.20 = 73,282.20/x
  3. Step 3: Cross multiply
    132,404.10x = 198,691.20 × 73,282.20
  4. Step 4: Simplify right side
    132,404.10x = 14,560,528,256.64
  5. Step 5: Solve for x
    x = 14,560,528,256.64/132,404.10
  6. Step 6: Final answer
    x = 109,970.37

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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.