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Finding the Fourth Proportional to 221,232.25, 331,820.13 and 71,456.97

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Solution

The fourth proportional to 221,232.25, 331,820.13 and 71,456.97 is: 107,176.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,232.25 : 331,820.13 = 71,456.97 : x
  2. Step 2: Convert to fraction form
    221,232.25/331,820.13 = 71,456.97/x
  3. Step 3: Cross multiply
    221,232.25x = 331,820.13 × 71,456.97
  4. Step 4: Simplify right side
    221,232.25x = 23,710,861,074.81
  5. Step 5: Solve for x
    x = 23,710,861,074.81/221,232.25
  6. Step 6: Final answer
    x = 107,176.33

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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.