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Finding the Fourth Proportional to 195,832, 270,249.78 and 106,408

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Solution

The fourth proportional to 195,832, 270,249.78 and 106,408 is: 146,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,832 : 270,249.78 = 106,408 : x
  2. Step 2: Convert to fraction form
    195,832/270,249.78 = 106,408/x
  3. Step 3: Cross multiply
    195,832x = 270,249.78 × 106,408
  4. Step 4: Simplify right side
    195,832x = 28,756,738,590.24
  5. Step 5: Solve for x
    x = 28,756,738,590.24/195,832
  6. Step 6: Final answer
    x = 146,843.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.