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Finding the Fourth Proportional to 63,170.60, 87,173.70 and 34,874.28

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Solution

The fourth proportional to 63,170.60, 87,173.70 and 34,874.28 is: 48,125.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,170.60 : 87,173.70 = 34,874.28 : x
  2. Step 2: Convert to fraction form
    63,170.60/87,173.70 = 34,874.28/x
  3. Step 3: Cross multiply
    63,170.60x = 87,173.70 × 34,874.28
  4. Step 4: Simplify right side
    63,170.60x = 3,040,120,022.44
  5. Step 5: Solve for x
    x = 3,040,120,022.44/63,170.60
  6. Step 6: Final answer
    x = 48,125.55

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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.