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Finding the Fourth Proportional to 63,940.60, 95,781.30 and 36,206.20

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Solution

The fourth proportional to 63,940.60, 95,781.30 and 36,206.20 is: 54,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,940.60 : 95,781.30 = 36,206.20 : x
  2. Step 2: Convert to fraction form
    63,940.60/95,781.30 = 36,206.20/x
  3. Step 3: Cross multiply
    63,940.60x = 95,781.30 × 36,206.20
  4. Step 4: Simplify right side
    63,940.60x = 3,467,876,904.06
  5. Step 5: Solve for x
    x = 3,467,876,904.06/63,940.60
  6. Step 6: Final answer
    x = 54,235.91

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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.