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Finding the Fourth Proportional to 80,685.70, 111,337.68 and 44,869.96

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Solution

The fourth proportional to 80,685.70, 111,337.68 and 44,869.96 is: 61,915.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,685.70 : 111,337.68 = 44,869.96 : x
  2. Step 2: Convert to fraction form
    80,685.70/111,337.68 = 44,869.96/x
  3. Step 3: Cross multiply
    80,685.70x = 111,337.68 × 44,869.96
  4. Step 4: Simplify right side
    80,685.70x = 4,995,717,248.09
  5. Step 5: Solve for x
    x = 4,995,717,248.09/80,685.70
  6. Step 6: Final answer
    x = 61,915.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.