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Finding the Fourth Proportional to 122,744.62, 169,385.97 and 69,029.62

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Solution

The fourth proportional to 122,744.62, 169,385.97 and 69,029.62 is: 95,259.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,744.62 : 169,385.97 = 69,029.62 : x
  2. Step 2: Convert to fraction form
    122,744.62/169,385.97 = 69,029.62/x
  3. Step 3: Cross multiply
    122,744.62x = 169,385.97 × 69,029.62
  4. Step 4: Simplify right side
    122,744.62x = 11,692,649,142.43
  5. Step 5: Solve for x
    x = 11,692,649,142.43/122,744.62
  6. Step 6: Final answer
    x = 95,259.97

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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.