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Finding the Fourth Proportional to 111,293.88, 166,745.16 and 92,693.04

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Solution

The fourth proportional to 111,293.88, 166,745.16 and 92,693.04 is: 138,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,293.88 : 166,745.16 = 92,693.04 : x
  2. Step 2: Convert to fraction form
    111,293.88/166,745.16 = 92,693.04/x
  3. Step 3: Cross multiply
    111,293.88x = 166,745.16 × 92,693.04
  4. Step 4: Simplify right side
    111,293.88x = 15,456,115,785.69
  5. Step 5: Solve for x
    x = 15,456,115,785.69/111,293.88
  6. Step 6: Final answer
    x = 138,876.60

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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.