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Finding the Fourth Proportional to 225,947.43, 338,912.42 and 68,171.67

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Solution

The fourth proportional to 225,947.43, 338,912.42 and 68,171.67 is: 102,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,947.43 : 338,912.42 = 68,171.67 : x
  2. Step 2: Convert to fraction form
    225,947.43/338,912.42 = 68,171.67/x
  3. Step 3: Cross multiply
    225,947.43x = 338,912.42 × 68,171.67
  4. Step 4: Simplify right side
    225,947.43x = 23,104,225,314.28
  5. Step 5: Solve for x
    x = 23,104,225,314.28/225,947.43
  6. Step 6: Final answer
    x = 102,254.87

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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.