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Finding the Fourth Proportional to 122,771.89, 169,377.24 and 69,044.59

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Solution

The fourth proportional to 122,771.89, 169,377.24 and 69,044.59 is: 95,254.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,771.89 : 169,377.24 = 69,044.59 : x
  2. Step 2: Convert to fraction form
    122,771.89/169,377.24 = 69,044.59/x
  3. Step 3: Cross multiply
    122,771.89x = 169,377.24 × 69,044.59
  4. Step 4: Simplify right side
    122,771.89x = 11,694,582,091.13
  5. Step 5: Solve for x
    x = 11,694,582,091.13/122,771.89
  6. Step 6: Final answer
    x = 95,254.56

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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.