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Finding the Fourth Proportional to 239,857.50, 330,695.67 and 196,677.90

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Solution

The fourth proportional to 239,857.50, 330,695.67 and 196,677.90 is: 271,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,857.50 : 330,695.67 = 196,677.90 : x
  2. Step 2: Convert to fraction form
    239,857.50/330,695.67 = 196,677.90/x
  3. Step 3: Cross multiply
    239,857.50x = 330,695.67 × 196,677.90
  4. Step 4: Simplify right side
    239,857.50x = 65,040,529,914.69
  5. Step 5: Solve for x
    x = 65,040,529,914.69/239,857.50
  6. Step 6: Final answer
    x = 271,163.21

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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.