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Finding the Fourth Proportional to 269,408.70, 404,113.05 and 92,115.90

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Solution

The fourth proportional to 269,408.70, 404,113.05 and 92,115.90 is: 138,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,408.70 : 404,113.05 = 92,115.90 : x
  2. Step 2: Convert to fraction form
    269,408.70/404,113.05 = 92,115.90/x
  3. Step 3: Cross multiply
    269,408.70x = 404,113.05 × 92,115.90
  4. Step 4: Simplify right side
    269,408.70x = 37,225,237,302.50
  5. Step 5: Solve for x
    x = 37,225,237,302.50/269,408.70
  6. Step 6: Final answer
    x = 138,173.85

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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.