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Finding the Fourth Proportional to 279,551.25, 419,392.49 and 92,562.75

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Solution

The fourth proportional to 279,551.25, 419,392.49 and 92,562.75 is: 138,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,551.25 : 419,392.49 = 92,562.75 : x
  2. Step 2: Convert to fraction form
    279,551.25/419,392.49 = 92,562.75/x
  3. Step 3: Cross multiply
    279,551.25x = 419,392.49 × 92,562.75
  4. Step 4: Simplify right side
    279,551.25x = 38,820,121,740.93
  5. Step 5: Solve for x
    x = 38,820,121,740.93/279,551.25
  6. Step 6: Final answer
    x = 138,865.85

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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.