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Finding the Fourth Proportional to 123,333.88, 170,201.24 and 66,745.24

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Solution

The fourth proportional to 123,333.88, 170,201.24 and 66,745.24 is: 92,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,333.88 : 170,201.24 = 66,745.24 : x
  2. Step 2: Convert to fraction form
    123,333.88/170,201.24 = 66,745.24/x
  3. Step 3: Cross multiply
    123,333.88x = 170,201.24 × 66,745.24
  4. Step 4: Simplify right side
    123,333.88x = 11,360,122,612.10
  5. Step 5: Solve for x
    x = 11,360,122,612.10/123,333.88
  6. Step 6: Final answer
    x = 92,108.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.