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Finding the Fourth Proportional to 168,626.88, 252,976.80 and 89,729.52

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Solution

The fourth proportional to 168,626.88, 252,976.80 and 89,729.52 is: 134,613.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,626.88 : 252,976.80 = 89,729.52 : x
  2. Step 2: Convert to fraction form
    168,626.88/252,976.80 = 89,729.52/x
  3. Step 3: Cross multiply
    168,626.88x = 252,976.80 × 89,729.52
  4. Step 4: Simplify right side
    168,626.88x = 22,699,486,835.14
  5. Step 5: Solve for x
    x = 22,699,486,835.14/168,626.88
  6. Step 6: Final answer
    x = 134,613.69

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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.