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Finding the Fourth Proportional to 80,681.67, 111,332.16 and 44,865.90

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Solution

The fourth proportional to 80,681.67, 111,332.16 and 44,865.90 is: 61,910.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,681.67 : 111,332.16 = 44,865.90 : x
  2. Step 2: Convert to fraction form
    80,681.67/111,332.16 = 44,865.90/x
  3. Step 3: Cross multiply
    80,681.67x = 111,332.16 × 44,865.90
  4. Step 4: Simplify right side
    80,681.67x = 4,995,017,557.34
  5. Step 5: Solve for x
    x = 4,995,017,557.34/80,681.67
  6. Step 6: Final answer
    x = 61,910.19

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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.