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Finding the Fourth Proportional to 225,759.15, 338,657.15 and 113,381.56

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Solution

The fourth proportional to 225,759.15, 338,657.15 and 113,381.56 is: 170,081.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,759.15 : 338,657.15 = 113,381.56 : x
  2. Step 2: Convert to fraction form
    225,759.15/338,657.15 = 113,381.56/x
  3. Step 3: Cross multiply
    225,759.15x = 338,657.15 × 113,381.56
  4. Step 4: Simplify right side
    225,759.15x = 38,397,475,972.15
  5. Step 5: Solve for x
    x = 38,397,475,972.15/225,759.15
  6. Step 6: Final answer
    x = 170,081.59

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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.