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Finding the Fourth Proportional to 247,149.23, 340,851.24 and 161,074.98

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Solution

The fourth proportional to 247,149.23, 340,851.24 and 161,074.98 is: 222,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,149.23 : 340,851.24 = 161,074.98 : x
  2. Step 2: Convert to fraction form
    247,149.23/340,851.24 = 161,074.98/x
  3. Step 3: Cross multiply
    247,149.23x = 340,851.24 × 161,074.98
  4. Step 4: Simplify right side
    247,149.23x = 54,902,606,665.98
  5. Step 5: Solve for x
    x = 54,902,606,665.98/247,149.23
  6. Step 6: Final answer
    x = 222,143.55

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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.