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Finding the Fourth Proportional to 225,758.15, 338,655.65 and 113,380.56

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Solution

The fourth proportional to 225,758.15, 338,655.65 and 113,380.56 is: 170,080.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,758.15 : 338,655.65 = 113,380.56 : x
  2. Step 2: Convert to fraction form
    225,758.15/338,655.65 = 113,380.56/x
  3. Step 3: Cross multiply
    225,758.15x = 338,655.65 × 113,380.56
  4. Step 4: Simplify right side
    225,758.15x = 38,396,967,244.16
  5. Step 5: Solve for x
    x = 38,396,967,244.16/225,758.15
  6. Step 6: Final answer
    x = 170,080.09

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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.