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Finding the Fourth Proportional to 80,838.96, 121,034.88 and 41,310.96

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Solution

The fourth proportional to 80,838.96, 121,034.88 and 41,310.96 is: 61,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,838.96 : 121,034.88 = 41,310.96 : x
  2. Step 2: Convert to fraction form
    80,838.96/121,034.88 = 41,310.96/x
  3. Step 3: Cross multiply
    80,838.96x = 121,034.88 × 41,310.96
  4. Step 4: Simplify right side
    80,838.96x = 5,000,067,086.28
  5. Step 5: Solve for x
    x = 5,000,067,086.28/80,838.96
  6. Step 6: Final answer
    x = 61,852.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.