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Finding the Fourth Proportional to 80,481.98, 111,063.42 and 44,669.84

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Solution

The fourth proportional to 80,481.98, 111,063.42 and 44,669.84 is: 61,643.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,481.98 : 111,063.42 = 44,669.84 : x
  2. Step 2: Convert to fraction form
    80,481.98/111,063.42 = 44,669.84/x
  3. Step 3: Cross multiply
    80,481.98x = 111,063.42 × 44,669.84
  4. Step 4: Simplify right side
    80,481.98x = 4,961,185,201.25
  5. Step 5: Solve for x
    x = 4,961,185,201.25/80,481.98
  6. Step 6: Final answer
    x = 61,643.43

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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.