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Finding the Fourth Proportional to 141,012.62, 194,487.44 and 87,327.44

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Solution

The fourth proportional to 141,012.62, 194,487.44 and 87,327.44 is: 120,443.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,012.62 : 194,487.44 = 87,327.44 : x
  2. Step 2: Convert to fraction form
    141,012.62/194,487.44 = 87,327.44/x
  3. Step 3: Cross multiply
    141,012.62x = 194,487.44 × 87,327.44
  4. Step 4: Simplify right side
    141,012.62x = 16,984,088,838.28
  5. Step 5: Solve for x
    x = 16,984,088,838.28/141,012.62
  6. Step 6: Final answer
    x = 120,443.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.