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Finding the Fourth Proportional to 168,198.05, 252,254.09 and 49,841.71

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Solution

The fourth proportional to 168,198.05, 252,254.09 and 49,841.71 is: 74,749.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,198.05 : 252,254.09 = 49,841.71 : x
  2. Step 2: Convert to fraction form
    168,198.05/252,254.09 = 49,841.71/x
  3. Step 3: Cross multiply
    168,198.05x = 252,254.09 × 49,841.71
  4. Step 4: Simplify right side
    168,198.05x = 12,572,775,972.81
  5. Step 5: Solve for x
    x = 12,572,775,972.81/168,198.05
  6. Step 6: Final answer
    x = 74,749.83

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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.