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Finding the Fourth Proportional to 63,147.90, 87,144.83 and 34,853.61

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Solution

The fourth proportional to 63,147.90, 87,144.83 and 34,853.61 is: 48,098.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,147.90 : 87,144.83 = 34,853.61 : x
  2. Step 2: Convert to fraction form
    63,147.90/87,144.83 = 34,853.61/x
  3. Step 3: Cross multiply
    63,147.90x = 87,144.83 × 34,853.61
  4. Step 4: Simplify right side
    63,147.90x = 3,037,311,744.07
  5. Step 5: Solve for x
    x = 3,037,311,744.07/63,147.90
  6. Step 6: Final answer
    x = 48,098.38

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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.