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Finding the Fourth Proportional to 80,636.92, 111,279.76 and 44,340.28

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Solution

The fourth proportional to 80,636.92, 111,279.76 and 44,340.28 is: 61,190.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,636.92 : 111,279.76 = 44,340.28 : x
  2. Step 2: Convert to fraction form
    80,636.92/111,279.76 = 44,340.28/x
  3. Step 3: Cross multiply
    80,636.92x = 111,279.76 × 44,340.28
  4. Step 4: Simplify right side
    80,636.92x = 4,934,175,716.73
  5. Step 5: Solve for x
    x = 4,934,175,716.73/80,636.92
  6. Step 6: Final answer
    x = 61,190.03

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1.5x scale

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.