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Finding the Fourth Proportional to 338,147.28, 466,643.22 and 187,244.28

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Solution

The fourth proportional to 338,147.28, 466,643.22 and 187,244.28 is: 258,397.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,147.28 : 466,643.22 = 187,244.28 : x
  2. Step 2: Convert to fraction form
    338,147.28/466,643.22 = 187,244.28/x
  3. Step 3: Cross multiply
    338,147.28x = 466,643.22 × 187,244.28
  4. Step 4: Simplify right side
    338,147.28x = 87,376,273,745.78
  5. Step 5: Solve for x
    x = 87,376,273,745.78/338,147.28
  6. Step 6: Final answer
    x = 258,397.09

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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.