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Finding the Fourth Proportional to 179,550.70, 269,002.05 and 85,849.90

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Solution

The fourth proportional to 179,550.70, 269,002.05 and 85,849.90 is: 128,619.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,550.70 : 269,002.05 = 85,849.90 : x
  2. Step 2: Convert to fraction form
    179,550.70/269,002.05 = 85,849.90/x
  3. Step 3: Cross multiply
    179,550.70x = 269,002.05 × 85,849.90
  4. Step 4: Simplify right side
    179,550.70x = 23,093,799,092.30
  5. Step 5: Solve for x
    x = 23,093,799,092.30/179,550.70
  6. Step 6: Final answer
    x = 128,619.93

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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.