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Finding the Fourth Proportional to 171,745.11, 236,480.31 and 149,044.05

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Solution

The fourth proportional to 171,745.11, 236,480.31 and 149,044.05 is: 205,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,745.11 : 236,480.31 = 149,044.05 : x
  2. Step 2: Convert to fraction form
    171,745.11/236,480.31 = 149,044.05/x
  3. Step 3: Cross multiply
    171,745.11x = 236,480.31 × 149,044.05
  4. Step 4: Simplify right side
    171,745.11x = 35,245,983,147.66
  5. Step 5: Solve for x
    x = 35,245,983,147.66/171,745.11
  6. Step 6: Final answer
    x = 205,222.63

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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.