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Finding the Fourth Proportional to 131,027.20, 196,249.20 and 113,531.20

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Solution

The fourth proportional to 131,027.20, 196,249.20 and 113,531.20 is: 170,044.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,027.20 : 196,249.20 = 113,531.20 : x
  2. Step 2: Convert to fraction form
    131,027.20/196,249.20 = 113,531.20/x
  3. Step 3: Cross multiply
    131,027.20x = 196,249.20 × 113,531.20
  4. Step 4: Simplify right side
    131,027.20x = 22,280,407,175.04
  5. Step 5: Solve for x
    x = 22,280,407,175.04/131,027.20
  6. Step 6: Final answer
    x = 170,044.14

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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.