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Finding the Fourth Proportional to 111,183.84, 166,450.44 and 68,936.46

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Solution

The fourth proportional to 111,183.84, 166,450.44 and 68,936.46 is: 103,202.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,183.84 : 166,450.44 = 68,936.46 : x
  2. Step 2: Convert to fraction form
    111,183.84/166,450.44 = 68,936.46/x
  3. Step 3: Cross multiply
    111,183.84x = 166,450.44 × 68,936.46
  4. Step 4: Simplify right side
    111,183.84x = 11,474,504,099.04
  5. Step 5: Solve for x
    x = 11,474,504,099.04/111,183.84
  6. Step 6: Final answer
    x = 103,202.98

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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.