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Finding the Fourth Proportional to 323,865.22, 485,147.22 and 161,269.41

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Solution

The fourth proportional to 323,865.22, 485,147.22 and 161,269.41 is: 241,580.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,865.22 : 485,147.22 = 161,269.41 : x
  2. Step 2: Convert to fraction form
    323,865.22/485,147.22 = 161,269.41/x
  3. Step 3: Cross multiply
    323,865.22x = 485,147.22 × 161,269.41
  4. Step 4: Simplify right side
    323,865.22x = 78,239,405,932.54
  5. Step 5: Solve for x
    x = 78,239,405,932.54/323,865.22
  6. Step 6: Final answer
    x = 241,580.14

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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.