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Finding the Fourth Proportional to 225,761.15, 338,660.15 and 113,383.56

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Solution

The fourth proportional to 225,761.15, 338,660.15 and 113,383.56 is: 170,084.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,761.15 : 338,660.15 = 113,383.56 : x
  2. Step 2: Convert to fraction form
    225,761.15/338,660.15 = 113,383.56/x
  3. Step 3: Cross multiply
    225,761.15x = 338,660.15 × 113,383.56
  4. Step 4: Simplify right side
    225,761.15x = 38,398,493,437.13
  5. Step 5: Solve for x
    x = 38,398,493,437.13/225,761.15
  6. Step 6: Final answer
    x = 170,084.59

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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.