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Finding the Fourth Proportional to 122,626.98, 169,222.97 and 68,911.22

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Solution

The fourth proportional to 122,626.98, 169,222.97 and 68,911.22 is: 95,096.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,626.98 : 169,222.97 = 68,911.22 : x
  2. Step 2: Convert to fraction form
    122,626.98/169,222.97 = 68,911.22/x
  3. Step 3: Cross multiply
    122,626.98x = 169,222.97 × 68,911.22
  4. Step 4: Simplify right side
    122,626.98x = 11,661,361,910.06
  5. Step 5: Solve for x
    x = 11,661,361,910.06/122,626.98
  6. Step 6: Final answer
    x = 95,096.22

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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.