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Finding the Fourth Proportional to 141,116.54, 211,734.05 and 87,853.10

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Solution

The fourth proportional to 141,116.54, 211,734.05 and 87,853.10 is: 131,816.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,116.54 : 211,734.05 = 87,853.10 : x
  2. Step 2: Convert to fraction form
    141,116.54/211,734.05 = 87,853.10/x
  3. Step 3: Cross multiply
    141,116.54x = 211,734.05 × 87,853.10
  4. Step 4: Simplify right side
    141,116.54x = 18,601,491,170.12
  5. Step 5: Solve for x
    x = 18,601,491,170.12/141,116.54
  6. Step 6: Final answer
    x = 131,816.52

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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.