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Finding the Fourth Proportional to 269,408.66, 404,098.32 and 82,420.16

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Solution

The fourth proportional to 269,408.66, 404,098.32 and 82,420.16 is: 123,625.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,408.66 : 404,098.32 = 82,420.16 : x
  2. Step 2: Convert to fraction form
    269,408.66/404,098.32 = 82,420.16/x
  3. Step 3: Cross multiply
    269,408.66x = 404,098.32 × 82,420.16
  4. Step 4: Simplify right side
    269,408.66x = 33,305,848,190.13
  5. Step 5: Solve for x
    x = 33,305,848,190.13/269,408.66
  6. Step 6: Final answer
    x = 123,625.75

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1.5x scale

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.