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Finding the Fourth Proportional to 198,624.98, 274,099.20 and 107,983.20

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Solution

The fourth proportional to 198,624.98, 274,099.20 and 107,983.20 is: 149,015.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,624.98 : 274,099.20 = 107,983.20 : x
  2. Step 2: Convert to fraction form
    198,624.98/274,099.20 = 107,983.20/x
  3. Step 3: Cross multiply
    198,624.98x = 274,099.20 × 107,983.20
  4. Step 4: Simplify right side
    198,624.98x = 29,598,108,733.44
  5. Step 5: Solve for x
    x = 29,598,108,733.44/198,624.98
  6. Step 6: Final answer
    x = 149,015.04

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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.