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Finding the Fourth Proportional to 322,402.70, 483,604.05 and 100,786.70

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Solution

The fourth proportional to 322,402.70, 483,604.05 and 100,786.70 is: 151,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,402.70 : 483,604.05 = 100,786.70 : x
  2. Step 2: Convert to fraction form
    322,402.70/483,604.05 = 100,786.70/x
  3. Step 3: Cross multiply
    322,402.70x = 483,604.05 × 100,786.70
  4. Step 4: Simplify right side
    322,402.70x = 48,740,856,306.14
  5. Step 5: Solve for x
    x = 48,740,856,306.14/322,402.70
  6. Step 6: Final answer
    x = 151,180.05

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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.