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Finding the Fourth Proportional to 141,137.60, 211,765.59 and 87,874.16

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Solution

The fourth proportional to 141,137.60, 211,765.59 and 87,874.16 is: 131,848.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,137.60 : 211,765.59 = 87,874.16 : x
  2. Step 2: Convert to fraction form
    141,137.60/211,765.59 = 87,874.16/x
  3. Step 3: Cross multiply
    141,137.60x = 211,765.59 × 87,874.16
  4. Step 4: Simplify right side
    141,137.60x = 18,608,722,279.33
  5. Step 5: Solve for x
    x = 18,608,722,279.33/141,137.60
  6. Step 6: Final answer
    x = 131,848.09

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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.