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Finding the Fourth Proportional to 151,842.20, 227,757.90 and 68,736.20

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Solution

The fourth proportional to 151,842.20, 227,757.90 and 68,736.20 is: 103,101.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,842.20 : 227,757.90 = 68,736.20 : x
  2. Step 2: Convert to fraction form
    151,842.20/227,757.90 = 68,736.20/x
  3. Step 3: Cross multiply
    151,842.20x = 227,757.90 × 68,736.20
  4. Step 4: Simplify right side
    151,842.20x = 15,655,212,565.98
  5. Step 5: Solve for x
    x = 15,655,212,565.98/151,842.20
  6. Step 6: Final answer
    x = 103,101.86

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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.