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Finding the Fourth Proportional to 80,185.20, 110,655 and 44,375.28

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Solution

The fourth proportional to 80,185.20, 110,655 and 44,375.28 is: 61,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,185.20 : 110,655 = 44,375.28 : x
  2. Step 2: Convert to fraction form
    80,185.20/110,655 = 44,375.28/x
  3. Step 3: Cross multiply
    80,185.20x = 110,655 × 44,375.28
  4. Step 4: Simplify right side
    80,185.20x = 4,910,346,608.40
  5. Step 5: Solve for x
    x = 4,910,346,608.40/80,185.20
  6. Step 6: Final answer
    x = 61,237.57

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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.