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Finding the Fourth Proportional to 111,974.25, 167,978.66 and 41,863.53

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Solution

The fourth proportional to 111,974.25, 167,978.66 and 41,863.53 is: 62,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,974.25 : 167,978.66 = 41,863.53 : x
  2. Step 2: Convert to fraction form
    111,974.25/167,978.66 = 41,863.53/x
  3. Step 3: Cross multiply
    111,974.25x = 167,978.66 × 41,863.53
  4. Step 4: Simplify right side
    111,974.25x = 7,032,179,462.95
  5. Step 5: Solve for x
    x = 7,032,179,462.95/111,974.25
  6. Step 6: Final answer
    x = 62,801.76

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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.