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Finding the Fourth Proportional to 168,755.60, 253,059.59 and 80,034.48

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Solution

The fourth proportional to 168,755.60, 253,059.59 and 80,034.48 is: 120,016.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,755.60 : 253,059.59 = 80,034.48 : x
  2. Step 2: Convert to fraction form
    168,755.60/253,059.59 = 80,034.48/x
  3. Step 3: Cross multiply
    168,755.60x = 253,059.59 × 80,034.48
  4. Step 4: Simplify right side
    168,755.60x = 20,253,492,894.75
  5. Step 5: Solve for x
    x = 20,253,492,894.75/168,755.60
  6. Step 6: Final answer
    x = 120,016.71

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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.