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Finding the Fourth Proportional to 239,664.70, 330,857.13 and 149,049.85

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Solution

The fourth proportional to 239,664.70, 330,857.13 and 149,049.85 is: 205,763.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,664.70 : 330,857.13 = 149,049.85 : x
  2. Step 2: Convert to fraction form
    239,664.70/330,857.13 = 149,049.85/x
  3. Step 3: Cross multiply
    239,664.70x = 330,857.13 × 149,049.85
  4. Step 4: Simplify right side
    239,664.70x = 49,314,205,597.93
  5. Step 5: Solve for x
    x = 49,314,205,597.93/239,664.70
  6. Step 6: Final answer
    x = 205,763.33

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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.