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Finding the Fourth Proportional to 269,408.53, 404,112.80 and 119,613.61

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Solution

The fourth proportional to 269,408.53, 404,112.80 and 119,613.61 is: 179,420.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,408.53 : 404,112.80 = 119,613.61 : x
  2. Step 2: Convert to fraction form
    269,408.53/404,112.80 = 119,613.61/x
  3. Step 3: Cross multiply
    269,408.53x = 404,112.80 × 119,613.61
  4. Step 4: Simplify right side
    269,408.53x = 48,337,390,855.21
  5. Step 5: Solve for x
    x = 48,337,390,855.21/269,408.53
  6. Step 6: Final answer
    x = 179,420.42

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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.