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Finding the Fourth Proportional to 73,273.20, 109,691.10 and 43,675.80

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Solution

The fourth proportional to 73,273.20, 109,691.10 and 43,675.80 is: 65,383.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,273.20 : 109,691.10 = 43,675.80 : x
  2. Step 2: Convert to fraction form
    73,273.20/109,691.10 = 43,675.80/x
  3. Step 3: Cross multiply
    73,273.20x = 109,691.10 × 43,675.80
  4. Step 4: Simplify right side
    73,273.20x = 4,790,846,545.38
  5. Step 5: Solve for x
    x = 4,790,846,545.38/73,273.20
  6. Step 6: Final answer
    x = 65,383.34

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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.