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Finding the Fourth Proportional to 141,279.78, 211,919.13 and 36,098.58

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Solution

The fourth proportional to 141,279.78, 211,919.13 and 36,098.58 is: 54,147.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,279.78 : 211,919.13 = 36,098.58 : x
  2. Step 2: Convert to fraction form
    141,279.78/211,919.13 = 36,098.58/x
  3. Step 3: Cross multiply
    141,279.78x = 211,919.13 × 36,098.58
  4. Step 4: Simplify right side
    141,279.78x = 7,649,979,667.84
  5. Step 5: Solve for x
    x = 7,649,979,667.84/141,279.78
  6. Step 6: Final answer
    x = 54,147.73

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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.