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Finding the Fourth Proportional to 132,332.10, 198,170.10 and 84,874.20

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Solution

The fourth proportional to 132,332.10, 198,170.10 and 84,874.20 is: 127,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,332.10 : 198,170.10 = 84,874.20 : x
  2. Step 2: Convert to fraction form
    132,332.10/198,170.10 = 84,874.20/x
  3. Step 3: Cross multiply
    132,332.10x = 198,170.10 × 84,874.20
  4. Step 4: Simplify right side
    132,332.10x = 16,819,528,701.42
  5. Step 5: Solve for x
    x = 16,819,528,701.42/132,332.10
  6. Step 6: Final answer
    x = 127,100.90

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1.5x scale

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.