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Finding the Fourth Proportional to 225,586.62, 338,362.92 and 65,663.87

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Solution

The fourth proportional to 225,586.62, 338,362.92 and 65,663.87 is: 98,490.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,586.62 : 338,362.92 = 65,663.87 : x
  2. Step 2: Convert to fraction form
    225,586.62/338,362.92 = 65,663.87/x
  3. Step 3: Cross multiply
    225,586.62x = 338,362.92 × 65,663.87
  4. Step 4: Simplify right side
    225,586.62x = 22,218,217,099.89
  5. Step 5: Solve for x
    x = 22,218,217,099.89/225,586.62
  6. Step 6: Final answer
    x = 98,490.85

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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.