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Finding the Fourth Proportional to 79,174.86, 118,763.06 and 63,340.55

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Solution

The fourth proportional to 79,174.86, 118,763.06 and 63,340.55 is: 95,011.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,174.86 : 118,763.06 = 63,340.55 : x
  2. Step 2: Convert to fraction form
    79,174.86/118,763.06 = 63,340.55/x
  3. Step 3: Cross multiply
    79,174.86x = 118,763.06 × 63,340.55
  4. Step 4: Simplify right side
    79,174.86x = 7,522,517,540.08
  5. Step 5: Solve for x
    x = 7,522,517,540.08/79,174.86
  6. Step 6: Final answer
    x = 95,011.44

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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.