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Finding the Fourth Proportional to 198,520.50, 273,958.29 and 109,096.50

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Solution

The fourth proportional to 198,520.50, 273,958.29 and 109,096.50 is: 150,553.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,520.50 : 273,958.29 = 109,096.50 : x
  2. Step 2: Convert to fraction form
    198,520.50/273,958.29 = 109,096.50/x
  3. Step 3: Cross multiply
    198,520.50x = 273,958.29 × 109,096.50
  4. Step 4: Simplify right side
    198,520.50x = 29,887,890,584.99
  5. Step 5: Solve for x
    x = 29,887,890,584.99/198,520.50
  6. Step 6: Final answer
    x = 150,553.17

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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.