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Finding the Fourth Proportional to 80,121.74, 110,566.11 and 44,310.98

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Solution

The fourth proportional to 80,121.74, 110,566.11 and 44,310.98 is: 61,148.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,121.74 : 110,566.11 = 44,310.98 : x
  2. Step 2: Convert to fraction form
    80,121.74/110,566.11 = 44,310.98/x
  3. Step 3: Cross multiply
    80,121.74x = 110,566.11 × 44,310.98
  4. Step 4: Simplify right side
    80,121.74x = 4,899,292,688.89
  5. Step 5: Solve for x
    x = 4,899,292,688.89/80,121.74
  6. Step 6: Final answer
    x = 61,148.11

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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.