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Finding the Fourth Proportional to 132,023.10, 198,034.65 and 72,974.10

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Solution

The fourth proportional to 132,023.10, 198,034.65 and 72,974.10 is: 109,461.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,023.10 : 198,034.65 = 72,974.10 : x
  2. Step 2: Convert to fraction form
    132,023.10/198,034.65 = 72,974.10/x
  3. Step 3: Cross multiply
    132,023.10x = 198,034.65 × 72,974.10
  4. Step 4: Simplify right side
    132,023.10x = 14,451,400,352.57
  5. Step 5: Solve for x
    x = 14,451,400,352.57/132,023.10
  6. Step 6: Final answer
    x = 109,461.15

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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.