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Finding the Fourth Proportional to 111,936.40, 167,904.60 and 41,806.60

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Solution

The fourth proportional to 111,936.40, 167,904.60 and 41,806.60 is: 62,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,936.40 : 167,904.60 = 41,806.60 : x
  2. Step 2: Convert to fraction form
    111,936.40/167,904.60 = 41,806.60/x
  3. Step 3: Cross multiply
    111,936.40x = 167,904.60 × 41,806.60
  4. Step 4: Simplify right side
    111,936.40x = 7,019,520,450.36
  5. Step 5: Solve for x
    x = 7,019,520,450.36/111,936.40
  6. Step 6: Final answer
    x = 62,709.90

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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.