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Finding the Fourth Proportional to 322,556.38, 445,142.99 and 179,318.81

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Solution

The fourth proportional to 322,556.38, 445,142.99 and 179,318.81 is: 247,468.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,556.38 : 445,142.99 = 179,318.81 : x
  2. Step 2: Convert to fraction form
    322,556.38/445,142.99 = 179,318.81/x
  3. Step 3: Cross multiply
    322,556.38x = 445,142.99 × 179,318.81
  4. Step 4: Simplify right side
    322,556.38x = 79,822,512,807.80
  5. Step 5: Solve for x
    x = 79,822,512,807.80/322,556.38
  6. Step 6: Final answer
    x = 247,468.41

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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.