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Finding the Fourth Proportional to 111,431.42, 167,171.73 and 41,310.73

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Solution

The fourth proportional to 111,431.42, 167,171.73 and 41,310.73 is: 61,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,431.42 : 167,171.73 = 41,310.73 : x
  2. Step 2: Convert to fraction form
    111,431.42/167,171.73 = 41,310.73/x
  3. Step 3: Cross multiply
    111,431.42x = 167,171.73 × 41,310.73
  4. Step 4: Simplify right side
    111,431.42x = 6,905,986,201.66
  5. Step 5: Solve for x
    x = 6,905,986,201.66/111,431.42
  6. Step 6: Final answer
    x = 61,975.21

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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.