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Finding the Fourth Proportional to 79,498.53, 119,173.66 and 26,871.21

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Solution

The fourth proportional to 79,498.53, 119,173.66 and 26,871.21 is: 40,281.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,498.53 : 119,173.66 = 26,871.21 : x
  2. Step 2: Convert to fraction form
    79,498.53/119,173.66 = 26,871.21/x
  3. Step 3: Cross multiply
    79,498.53x = 119,173.66 × 26,871.21
  4. Step 4: Simplify right side
    79,498.53x = 3,202,340,377.15
  5. Step 5: Solve for x
    x = 3,202,340,377.15/79,498.53
  6. Step 6: Final answer
    x = 40,281.76

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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.