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Finding the Fourth Proportional to 169,842.92, 254,806.13 and 84,494.07

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Solution

The fourth proportional to 169,842.92, 254,806.13 and 84,494.07 is: 126,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,842.92 : 254,806.13 = 84,494.07 : x
  2. Step 2: Convert to fraction form
    169,842.92/254,806.13 = 84,494.07/x
  3. Step 3: Cross multiply
    169,842.92x = 254,806.13 × 84,494.07
  4. Step 4: Simplify right side
    169,842.92x = 21,529,606,562.18
  5. Step 5: Solve for x
    x = 21,529,606,562.18/169,842.92
  6. Step 6: Final answer
    x = 126,761.88

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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.