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Finding the Fourth Proportional to 131,892.88, 182,012.40 and 71,463.52

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Solution

The fourth proportional to 131,892.88, 182,012.40 and 71,463.52 is: 98,619.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,892.88 : 182,012.40 = 71,463.52 : x
  2. Step 2: Convert to fraction form
    131,892.88/182,012.40 = 71,463.52/x
  3. Step 3: Cross multiply
    131,892.88x = 182,012.40 × 71,463.52
  4. Step 4: Simplify right side
    131,892.88x = 13,007,246,787.65
  5. Step 5: Solve for x
    x = 13,007,246,787.65/131,892.88
  6. Step 6: Final answer
    x = 98,619.78

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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.