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Finding the Fourth Proportional to 80,487.81, 111,067.92 and 44,677.80

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Solution

The fourth proportional to 80,487.81, 111,067.92 and 44,677.80 is: 61,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,487.81 : 111,067.92 = 44,677.80 : x
  2. Step 2: Convert to fraction form
    80,487.81/111,067.92 = 44,677.80/x
  3. Step 3: Cross multiply
    80,487.81x = 111,067.92 × 44,677.80
  4. Step 4: Simplify right side
    80,487.81x = 4,962,270,316.18
  5. Step 5: Solve for x
    x = 4,962,270,316.18/80,487.81
  6. Step 6: Final answer
    x = 61,652.45

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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.