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Finding the Fourth Proportional to 88,640.88, 132,922.34 and 33,198

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Solution

The fourth proportional to 88,640.88, 132,922.34 and 33,198 is: 49,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,640.88 : 132,922.34 = 33,198 : x
  2. Step 2: Convert to fraction form
    88,640.88/132,922.34 = 33,198/x
  3. Step 3: Cross multiply
    88,640.88x = 132,922.34 × 33,198
  4. Step 4: Simplify right side
    88,640.88x = 4,412,755,843.32
  5. Step 5: Solve for x
    x = 4,412,755,843.32/88,640.88
  6. Step 6: Final answer
    x = 49,782.40

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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.