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Finding the Fourth Proportional to 338,171.50, 466,691.34 and 187,268.50

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Solution

The fourth proportional to 338,171.50, 466,691.34 and 187,268.50 is: 258,438.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,171.50 : 466,691.34 = 187,268.50 : x
  2. Step 2: Convert to fraction form
    338,171.50/466,691.34 = 187,268.50/x
  3. Step 3: Cross multiply
    338,171.50x = 466,691.34 × 187,268.50
  4. Step 4: Simplify right side
    338,171.50x = 87,396,587,204.79
  5. Step 5: Solve for x
    x = 87,396,587,204.79/338,171.50
  6. Step 6: Final answer
    x = 258,438.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.