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Finding the Fourth Proportional to 132,361.80, 198,251.10 and 92,704.20

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Solution

The fourth proportional to 132,361.80, 198,251.10 and 92,704.20 is: 138,852.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,361.80 : 198,251.10 = 92,704.20 : x
  2. Step 2: Convert to fraction form
    132,361.80/198,251.10 = 92,704.20/x
  3. Step 3: Cross multiply
    132,361.80x = 198,251.10 × 92,704.20
  4. Step 4: Simplify right side
    132,361.80x = 18,378,709,624.62
  5. Step 5: Solve for x
    x = 18,378,709,624.62/132,361.80
  6. Step 6: Final answer
    x = 138,852.07

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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.