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Finding the Fourth Proportional to 186,560.71, 279,753.56 and 68,149.24

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Solution

The fourth proportional to 186,560.71, 279,753.56 and 68,149.24 is: 102,191.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,560.71 : 279,753.56 = 68,149.24 : x
  2. Step 2: Convert to fraction form
    186,560.71/279,753.56 = 68,149.24/x
  3. Step 3: Cross multiply
    186,560.71x = 279,753.56 × 68,149.24
  4. Step 4: Simplify right side
    186,560.71x = 19,064,992,501.29
  5. Step 5: Solve for x
    x = 19,064,992,501.29/186,560.71
  6. Step 6: Final answer
    x = 102,191.90

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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.