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Finding the Fourth Proportional to 122,255.88, 168,721.23 and 68,544.37

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Solution

The fourth proportional to 122,255.88, 168,721.23 and 68,544.37 is: 94,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,255.88 : 168,721.23 = 68,544.37 : x
  2. Step 2: Convert to fraction form
    122,255.88/168,721.23 = 68,544.37/x
  3. Step 3: Cross multiply
    122,255.88x = 168,721.23 × 68,544.37
  4. Step 4: Simplify right side
    122,255.88x = 11,564,890,073.25
  5. Step 5: Solve for x
    x = 11,564,890,073.25/122,255.88
  6. Step 6: Final answer
    x = 94,595.78

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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.