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Finding the Fourth Proportional to 111,942.70, 167,914.05 and 110,905.90

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Solution

The fourth proportional to 111,942.70, 167,914.05 and 110,905.90 is: 166,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,942.70 : 167,914.05 = 110,905.90 : x
  2. Step 2: Convert to fraction form
    111,942.70/167,914.05 = 110,905.90/x
  3. Step 3: Cross multiply
    111,942.70x = 167,914.05 × 110,905.90
  4. Step 4: Simplify right side
    111,942.70x = 18,622,658,837.90
  5. Step 5: Solve for x
    x = 18,622,658,837.90/111,942.70
  6. Step 6: Final answer
    x = 166,358.85

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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.