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Finding the Fourth Proportional to 276,796.60, 415,131.18 and 108,320.92

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Solution

The fourth proportional to 276,796.60, 415,131.18 and 108,320.92 is: 162,456.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,796.60 : 415,131.18 = 108,320.92 : x
  2. Step 2: Convert to fraction form
    276,796.60/415,131.18 = 108,320.92/x
  3. Step 3: Cross multiply
    276,796.60x = 415,131.18 × 108,320.92
  4. Step 4: Simplify right side
    276,796.60x = 44,967,391,338.29
  5. Step 5: Solve for x
    x = 44,967,391,338.29/276,796.60
  6. Step 6: Final answer
    x = 162,456.44

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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.