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Finding the Fourth Proportional to 60,414.80, 90,643.80 and 25,365.20

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Solution

The fourth proportional to 60,414.80, 90,643.80 and 25,365.20 is: 38,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,414.80 : 90,643.80 = 25,365.20 : x
  2. Step 2: Convert to fraction form
    60,414.80/90,643.80 = 25,365.20/x
  3. Step 3: Cross multiply
    60,414.80x = 90,643.80 × 25,365.20
  4. Step 4: Simplify right side
    60,414.80x = 2,299,198,115.76
  5. Step 5: Solve for x
    x = 2,299,198,115.76/60,414.80
  6. Step 6: Final answer
    x = 38,056.87

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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.