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Finding the Fourth Proportional to 168,868.01, 253,332.72 and 80,120.70

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Solution

The fourth proportional to 168,868.01, 253,332.72 and 80,120.70 is: 120,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,868.01 : 253,332.72 = 80,120.70 : x
  2. Step 2: Convert to fraction form
    168,868.01/253,332.72 = 80,120.70/x
  3. Step 3: Cross multiply
    168,868.01x = 253,332.72 × 80,120.70
  4. Step 4: Simplify right side
    168,868.01x = 20,297,194,859.30
  5. Step 5: Solve for x
    x = 20,297,194,859.30/168,868.01
  6. Step 6: Final answer
    x = 120,195.62

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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.