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Finding the Fourth Proportional to 80,394.12, 110,932.74 and 53,553.96

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Solution

The fourth proportional to 80,394.12, 110,932.74 and 53,553.96 is: 73,897.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,394.12 : 110,932.74 = 53,553.96 : x
  2. Step 2: Convert to fraction form
    80,394.12/110,932.74 = 53,553.96/x
  3. Step 3: Cross multiply
    80,394.12x = 110,932.74 × 53,553.96
  4. Step 4: Simplify right side
    80,394.12x = 5,940,887,520.65
  5. Step 5: Solve for x
    x = 5,940,887,520.65/80,394.12
  6. Step 6: Final answer
    x = 73,897.04

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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.