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Finding the Fourth Proportional to 167,198.78, 250,806.38 and 67,345.49

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Solution

The fourth proportional to 167,198.78, 250,806.38 and 67,345.49 is: 101,021.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,198.78 : 250,806.38 = 67,345.49 : x
  2. Step 2: Convert to fraction form
    167,198.78/250,806.38 = 67,345.49/x
  3. Step 3: Cross multiply
    167,198.78x = 250,806.38 × 67,345.49
  4. Step 4: Simplify right side
    167,198.78x = 16,890,678,846.51
  5. Step 5: Solve for x
    x = 16,890,678,846.51/167,198.78
  6. Step 6: Final answer
    x = 101,021.54

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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.