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Finding the Fourth Proportional to 167,408.72, 250,916.20 and 67,435.44

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Solution

The fourth proportional to 167,408.72, 250,916.20 and 67,435.44 is: 101,073.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,408.72 : 250,916.20 = 67,435.44 : x
  2. Step 2: Convert to fraction form
    167,408.72/250,916.20 = 67,435.44/x
  3. Step 3: Cross multiply
    167,408.72x = 250,916.20 × 67,435.44
  4. Step 4: Simplify right side
    167,408.72x = 16,920,644,350.13
  5. Step 5: Solve for x
    x = 16,920,644,350.13/167,408.72
  6. Step 6: Final answer
    x = 101,073.85

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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.