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Finding the Fourth Proportional to 168,291.10, 252,311.10 and 101,717.20

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Solution

The fourth proportional to 168,291.10, 252,311.10 and 101,717.20 is: 152,499.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,291.10 : 252,311.10 = 101,717.20 : x
  2. Step 2: Convert to fraction form
    168,291.10/252,311.10 = 101,717.20/x
  3. Step 3: Cross multiply
    168,291.10x = 252,311.10 × 101,717.20
  4. Step 4: Simplify right side
    168,291.10x = 25,664,378,620.92
  5. Step 5: Solve for x
    x = 25,664,378,620.92/168,291.10
  6. Step 6: Final answer
    x = 152,499.92

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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.