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Finding the Fourth Proportional to 79,596.74, 109,815.26 and 49,350.80

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Solution

The fourth proportional to 79,596.74, 109,815.26 and 49,350.80 is: 68,086.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,596.74 : 109,815.26 = 49,350.80 : x
  2. Step 2: Convert to fraction form
    79,596.74/109,815.26 = 49,350.80/x
  3. Step 3: Cross multiply
    79,596.74x = 109,815.26 × 49,350.80
  4. Step 4: Simplify right side
    79,596.74x = 5,419,470,933.21
  5. Step 5: Solve for x
    x = 5,419,470,933.21/79,596.74
  6. Step 6: Final answer
    x = 68,086.59

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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.