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Finding the Fourth Proportional to 171,991.92, 237,370.80 and 96,540.48

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Solution

The fourth proportional to 171,991.92, 237,370.80 and 96,540.48 is: 133,238.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,991.92 : 237,370.80 = 96,540.48 : x
  2. Step 2: Convert to fraction form
    171,991.92/237,370.80 = 96,540.48/x
  3. Step 3: Cross multiply
    171,991.92x = 237,370.80 × 96,540.48
  4. Step 4: Simplify right side
    171,991.92x = 22,915,890,969.98
  5. Step 5: Solve for x
    x = 22,915,890,969.98/171,991.92
  6. Step 6: Final answer
    x = 133,238.18

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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.