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Finding the Fourth Proportional to 75,180.80, 103,677.92 and 44,961.28

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Solution

The fourth proportional to 75,180.80, 103,677.92 and 44,961.28 is: 62,003.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,180.80 : 103,677.92 = 44,961.28 : x
  2. Step 2: Convert to fraction form
    75,180.80/103,677.92 = 44,961.28/x
  3. Step 3: Cross multiply
    75,180.80x = 103,677.92 × 44,961.28
  4. Step 4: Simplify right side
    75,180.80x = 4,661,491,990.94
  5. Step 5: Solve for x
    x = 4,661,491,990.94/75,180.80
  6. Step 6: Final answer
    x = 62,003.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.