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Finding the Fourth Proportional to 80,481.28, 111,058.95 and 44,671.30

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Solution

The fourth proportional to 80,481.28, 111,058.95 and 44,671.30 is: 61,643.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,481.28 : 111,058.95 = 44,671.30 : x
  2. Step 2: Convert to fraction form
    80,481.28/111,058.95 = 44,671.30/x
  3. Step 3: Cross multiply
    80,481.28x = 111,058.95 × 44,671.30
  4. Step 4: Simplify right side
    80,481.28x = 4,961,147,673.14
  5. Step 5: Solve for x
    x = 4,961,147,673.14/80,481.28
  6. Step 6: Final answer
    x = 61,643.50

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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.