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Finding the Fourth Proportional to 279,419.76, 419,149.08 and 92,562.48

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Solution

The fourth proportional to 279,419.76, 419,149.08 and 92,562.48 is: 138,850.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,419.76 : 419,149.08 = 92,562.48 : x
  2. Step 2: Convert to fraction form
    279,419.76/419,149.08 = 92,562.48/x
  3. Step 3: Cross multiply
    279,419.76x = 419,149.08 × 92,562.48
  4. Step 4: Simplify right side
    279,419.76x = 38,797,478,334.52
  5. Step 5: Solve for x
    x = 38,797,478,334.52/279,419.76
  6. Step 6: Final answer
    x = 138,850.16

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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.