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Finding the Fourth Proportional to 80,765.78, 111,456.78 and 44,955.02

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Solution

The fourth proportional to 80,765.78, 111,456.78 and 44,955.02 is: 62,037.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,765.78 : 111,456.78 = 44,955.02 : x
  2. Step 2: Convert to fraction form
    80,765.78/111,456.78 = 44,955.02/x
  3. Step 3: Cross multiply
    80,765.78x = 111,456.78 × 44,955.02
  4. Step 4: Simplify right side
    80,765.78x = 5,010,541,549.26
  5. Step 5: Solve for x
    x = 5,010,541,549.26/80,765.78
  6. Step 6: Final answer
    x = 62,037.93

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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.