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Finding the Fourth Proportional to 63,396.82, 87,467.88 and 42,179.68

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Solution

The fourth proportional to 63,396.82, 87,467.88 and 42,179.68 is: 58,194.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,396.82 : 87,467.88 = 42,179.68 : x
  2. Step 2: Convert to fraction form
    63,396.82/87,467.88 = 42,179.68/x
  3. Step 3: Cross multiply
    63,396.82x = 87,467.88 × 42,179.68
  4. Step 4: Simplify right side
    63,396.82x = 3,689,367,188.68
  5. Step 5: Solve for x
    x = 3,689,367,188.68/63,396.82
  6. Step 6: Final answer
    x = 58,194.83

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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.