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Finding the Fourth Proportional to 322,657.73, 445,086.09 and 193,561.85

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Solution

The fourth proportional to 322,657.73, 445,086.09 and 193,561.85 is: 267,006.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,657.73 : 445,086.09 = 193,561.85 : x
  2. Step 2: Convert to fraction form
    322,657.73/445,086.09 = 193,561.85/x
  3. Step 3: Cross multiply
    322,657.73x = 445,086.09 × 193,561.85
  4. Step 4: Simplify right side
    322,657.73x = 86,151,688,102.38
  5. Step 5: Solve for x
    x = 86,151,688,102.38/322,657.73
  6. Step 6: Final answer
    x = 267,006.43

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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.