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Finding the Fourth Proportional to 168,515.16, 252,819.98 and 73,753.60

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Solution

The fourth proportional to 168,515.16, 252,819.98 and 73,753.60 is: 110,651.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,515.16 : 252,819.98 = 73,753.60 : x
  2. Step 2: Convert to fraction form
    168,515.16/252,819.98 = 73,753.60/x
  3. Step 3: Cross multiply
    168,515.16x = 252,819.98 × 73,753.60
  4. Step 4: Simplify right side
    168,515.16x = 18,646,383,676.93
  5. Step 5: Solve for x
    x = 18,646,383,676.93/168,515.16
  6. Step 6: Final answer
    x = 110,651.08

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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.