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Finding the Fourth Proportional to 339,425.46, 468,491.31 and 196,164.81

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Solution

The fourth proportional to 339,425.46, 468,491.31 and 196,164.81 is: 270,756.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,425.46 : 468,491.31 = 196,164.81 : x
  2. Step 2: Convert to fraction form
    339,425.46/468,491.31 = 196,164.81/x
  3. Step 3: Cross multiply
    339,425.46x = 468,491.31 × 196,164.81
  4. Step 4: Simplify right side
    339,425.46x = 91,901,508,812.80
  5. Step 5: Solve for x
    x = 91,901,508,812.80/339,425.46
  6. Step 6: Final answer
    x = 270,756.09

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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.