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Finding the Fourth Proportional to 168,923.70, 252,729.45 and 109,874.70

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Solution

The fourth proportional to 168,923.70, 252,729.45 and 109,874.70 is: 164,385.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,923.70 : 252,729.45 = 109,874.70 : x
  2. Step 2: Convert to fraction form
    168,923.70/252,729.45 = 109,874.70/x
  3. Step 3: Cross multiply
    168,923.70x = 252,729.45 × 109,874.70
  4. Step 4: Simplify right side
    168,923.70x = 27,768,572,499.92
  5. Step 5: Solve for x
    x = 27,768,572,499.92/168,923.70
  6. Step 6: Final answer
    x = 164,385.30

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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.