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Finding the Fourth Proportional to 238,959.72, 329,752.62 and 131,539.14

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Solution

The fourth proportional to 238,959.72, 329,752.62 and 131,539.14 is: 181,517.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,959.72 : 329,752.62 = 131,539.14 : x
  2. Step 2: Convert to fraction form
    238,959.72/329,752.62 = 131,539.14/x
  3. Step 3: Cross multiply
    238,959.72x = 329,752.62 × 131,539.14
  4. Step 4: Simplify right side
    238,959.72x = 43,375,376,047.55
  5. Step 5: Solve for x
    x = 43,375,376,047.55/238,959.72
  6. Step 6: Final answer
    x = 181,517.52

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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.