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Finding the Fourth Proportional to 169,018.76, 253,163.66 and 159,081.92

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Solution

The fourth proportional to 169,018.76, 253,163.66 and 159,081.92 is: 238,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,018.76 : 253,163.66 = 159,081.92 : x
  2. Step 2: Convert to fraction form
    169,018.76/253,163.66 = 159,081.92/x
  3. Step 3: Cross multiply
    169,018.76x = 253,163.66 × 159,081.92
  4. Step 4: Simplify right side
    169,018.76x = 40,273,761,107.03
  5. Step 5: Solve for x
    x = 40,273,761,107.03/169,018.76
  6. Step 6: Final answer
    x = 238,279.83

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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.