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Finding the Fourth Proportional to 197,997.20, 296,736.60 and 79,571.60

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Solution

The fourth proportional to 197,997.20, 296,736.60 and 79,571.60 is: 119,253.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,997.20 : 296,736.60 = 79,571.60 : x
  2. Step 2: Convert to fraction form
    197,997.20/296,736.60 = 79,571.60/x
  3. Step 3: Cross multiply
    197,997.20x = 296,736.60 × 79,571.60
  4. Step 4: Simplify right side
    197,997.20x = 23,611,806,040.56
  5. Step 5: Solve for x
    x = 23,611,806,040.56/197,997.20
  6. Step 6: Final answer
    x = 119,253.23

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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.