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Finding the Fourth Proportional to 168,267.64, 252,449.14 and 68,499.40

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Solution

The fourth proportional to 168,267.64, 252,449.14 and 68,499.40 is: 102,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,267.64 : 252,449.14 = 68,499.40 : x
  2. Step 2: Convert to fraction form
    168,267.64/252,449.14 = 68,499.40/x
  3. Step 3: Cross multiply
    168,267.64x = 252,449.14 × 68,499.40
  4. Step 4: Simplify right side
    168,267.64x = 17,292,613,358.27
  5. Step 5: Solve for x
    x = 17,292,613,358.27/168,267.64
  6. Step 6: Final answer
    x = 102,768.51

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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.