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Finding the Fourth Proportional to 168,197.91, 252,296.85 and 115,447.47

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Solution

The fourth proportional to 168,197.91, 252,296.85 and 115,447.47 is: 173,171.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,197.91 : 252,296.85 = 115,447.47 : x
  2. Step 2: Convert to fraction form
    168,197.91/252,296.85 = 115,447.47/x
  3. Step 3: Cross multiply
    168,197.91x = 252,296.85 × 115,447.47
  4. Step 4: Simplify right side
    168,197.91x = 29,127,033,021.47
  5. Step 5: Solve for x
    x = 29,127,033,021.47/168,197.91
  6. Step 6: Final answer
    x = 173,171.19

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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.