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Finding the Fourth Proportional to 79,671.30, 119,433.13 and 27,043.87

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Solution

The fourth proportional to 79,671.30, 119,433.13 and 27,043.87 is: 40,540.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,671.30 : 119,433.13 = 27,043.87 : x
  2. Step 2: Convert to fraction form
    79,671.30/119,433.13 = 27,043.87/x
  3. Step 3: Cross multiply
    79,671.30x = 119,433.13 × 27,043.87
  4. Step 4: Simplify right side
    79,671.30x = 3,229,934,041.41
  5. Step 5: Solve for x
    x = 3,229,934,041.41/79,671.30
  6. Step 6: Final answer
    x = 40,540.75

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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.