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Finding the Fourth Proportional to 338,891.22, 508,163.16 and 179,052.96

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Solution

The fourth proportional to 338,891.22, 508,163.16 and 179,052.96 is: 268,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,891.22 : 508,163.16 = 179,052.96 : x
  2. Step 2: Convert to fraction form
    338,891.22/508,163.16 = 179,052.96/x
  3. Step 3: Cross multiply
    338,891.22x = 508,163.16 × 179,052.96
  4. Step 4: Simplify right side
    338,891.22x = 90,988,117,960.95
  5. Step 5: Solve for x
    x = 90,988,117,960.95/338,891.22
  6. Step 6: Final answer
    x = 268,487.68

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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.