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Finding the Fourth Proportional to 80,732.80, 121,115.40 and 24,576.40

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Solution

The fourth proportional to 80,732.80, 121,115.40 and 24,576.40 is: 36,869.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,732.80 : 121,115.40 = 24,576.40 : x
  2. Step 2: Convert to fraction form
    80,732.80/121,115.40 = 24,576.40/x
  3. Step 3: Cross multiply
    80,732.80x = 121,115.40 × 24,576.40
  4. Step 4: Simplify right side
    80,732.80x = 2,976,580,516.56
  5. Step 5: Solve for x
    x = 2,976,580,516.56/80,732.80
  6. Step 6: Final answer
    x = 36,869.53

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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.