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Finding the Fourth Proportional to 107,332.80, 160,869.60 and 54,715.20

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Solution

The fourth proportional to 107,332.80, 160,869.60 and 54,715.20 is: 82,006.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,332.80 : 160,869.60 = 54,715.20 : x
  2. Step 2: Convert to fraction form
    107,332.80/160,869.60 = 54,715.20/x
  3. Step 3: Cross multiply
    107,332.80x = 160,869.60 × 54,715.20
  4. Step 4: Simplify right side
    107,332.80x = 8,802,012,337.92
  5. Step 5: Solve for x
    x = 8,802,012,337.92/107,332.80
  6. Step 6: Final answer
    x = 82,006.73

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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.