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Finding the Fourth Proportional to 169,644.67, 254,392.26 and 79,712.97

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Solution

The fourth proportional to 169,644.67, 254,392.26 and 79,712.97 is: 119,534.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,644.67 : 254,392.26 = 79,712.97 : x
  2. Step 2: Convert to fraction form
    169,644.67/254,392.26 = 79,712.97/x
  3. Step 3: Cross multiply
    169,644.67x = 254,392.26 × 79,712.97
  4. Step 4: Simplify right side
    169,644.67x = 20,278,362,589.61
  5. Step 5: Solve for x
    x = 20,278,362,589.61/169,644.67
  6. Step 6: Final answer
    x = 119,534.33

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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.