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Finding the Fourth Proportional to 279,598.56, 419,402.70 and 92,614.92

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Solution

The fourth proportional to 279,598.56, 419,402.70 and 92,614.92 is: 138,923.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,598.56 : 419,402.70 = 92,614.92 : x
  2. Step 2: Convert to fraction form
    279,598.56/419,402.70 = 92,614.92/x
  3. Step 3: Cross multiply
    279,598.56x = 419,402.70 × 92,614.92
  4. Step 4: Simplify right side
    279,598.56x = 38,842,947,508.28
  5. Step 5: Solve for x
    x = 38,842,947,508.28/279,598.56
  6. Step 6: Final answer
    x = 138,923.99

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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.