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Finding the Fourth Proportional to 179,778.30, 269,764.65 and 79,953.90

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Solution

The fourth proportional to 179,778.30, 269,764.65 and 79,953.90 is: 119,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,778.30 : 269,764.65 = 79,953.90 : x
  2. Step 2: Convert to fraction form
    179,778.30/269,764.65 = 79,953.90/x
  3. Step 3: Cross multiply
    179,778.30x = 269,764.65 × 79,953.90
  4. Step 4: Simplify right side
    179,778.30x = 21,568,735,849.64
  5. Step 5: Solve for x
    x = 21,568,735,849.64/179,778.30
  6. Step 6: Final answer
    x = 119,974.08

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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.