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Finding the Fourth Proportional to 80,681.66, 111,332.16 and 44,865.88

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Solution

The fourth proportional to 80,681.66, 111,332.16 and 44,865.88 is: 61,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,681.66 : 111,332.16 = 44,865.88 : x
  2. Step 2: Convert to fraction form
    80,681.66/111,332.16 = 44,865.88/x
  3. Step 3: Cross multiply
    80,681.66x = 111,332.16 × 44,865.88
  4. Step 4: Simplify right side
    80,681.66x = 4,995,015,330.70
  5. Step 5: Solve for x
    x = 4,995,015,330.70/80,681.66
  6. Step 6: Final answer
    x = 61,910.17

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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.