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Finding the Fourth Proportional to 80,239.98, 110,729.73 and 44,429.88

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Solution

The fourth proportional to 80,239.98, 110,729.73 and 44,429.88 is: 61,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,239.98 : 110,729.73 = 44,429.88 : x
  2. Step 2: Convert to fraction form
    80,239.98/110,729.73 = 44,429.88/x
  3. Step 3: Cross multiply
    80,239.98x = 110,729.73 × 44,429.88
  4. Step 4: Simplify right side
    80,239.98x = 4,919,708,616.33
  5. Step 5: Solve for x
    x = 4,919,708,616.33/80,239.98
  6. Step 6: Final answer
    x = 61,312.44

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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.