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Finding the Fourth Proportional to 111,049.39, 166,592.49 and 38,983.60

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Solution

The fourth proportional to 111,049.39, 166,592.49 and 38,983.60 is: 58,481.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,049.39 : 166,592.49 = 38,983.60 : x
  2. Step 2: Convert to fraction form
    111,049.39/166,592.49 = 38,983.60/x
  3. Step 3: Cross multiply
    111,049.39x = 166,592.49 × 38,983.60
  4. Step 4: Simplify right side
    111,049.39x = 6,494,375,633.40
  5. Step 5: Solve for x
    x = 6,494,375,633.40/111,049.39
  6. Step 6: Final answer
    x = 58,481.87

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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.