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Finding the Fourth Proportional to 80,578.41, 120,867.62 and 25,174.41

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Solution

The fourth proportional to 80,578.41, 120,867.62 and 25,174.41 is: 37,761.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,578.41 : 120,867.62 = 25,174.41 : x
  2. Step 2: Convert to fraction form
    80,578.41/120,867.62 = 25,174.41/x
  3. Step 3: Cross multiply
    80,578.41x = 120,867.62 × 25,174.41
  4. Step 4: Simplify right side
    80,578.41x = 3,042,770,442.48
  5. Step 5: Solve for x
    x = 3,042,770,442.48/80,578.41
  6. Step 6: Final answer
    x = 37,761.61

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1.5x scale

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.