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Finding the Fourth Proportional to 279,600.56, 419,405.70 and 92,616.92

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Solution

The fourth proportional to 279,600.56, 419,405.70 and 92,616.92 is: 138,926.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,600.56 : 419,405.70 = 92,616.92 : x
  2. Step 2: Convert to fraction form
    279,600.56/419,405.70 = 92,616.92/x
  3. Step 3: Cross multiply
    279,600.56x = 419,405.70 × 92,616.92
  4. Step 4: Simplify right side
    279,600.56x = 38,844,064,164.44
  5. Step 5: Solve for x
    x = 38,844,064,164.44/279,600.56
  6. Step 6: Final answer
    x = 138,926.99

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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.