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Finding the Fourth Proportional to 218,236.82, 327,318.78 and 60,481.22

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Solution

The fourth proportional to 218,236.82, 327,318.78 and 60,481.22 is: 90,711.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,236.82 : 327,318.78 = 60,481.22 : x
  2. Step 2: Convert to fraction form
    218,236.82/327,318.78 = 60,481.22/x
  3. Step 3: Cross multiply
    218,236.82x = 327,318.78 × 60,481.22
  4. Step 4: Simplify right side
    218,236.82x = 19,796,639,143.31
  5. Step 5: Solve for x
    x = 19,796,639,143.31/218,236.82
  6. Step 6: Final answer
    x = 90,711.73

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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.