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Finding the Fourth Proportional to 344, 516.06 and 112.94

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Solution

The fourth proportional to 344, 516.06 and 112.94 is: 169.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    344 : 516.06 = 112.94 : x
  2. Step 2: Convert to fraction form
    344/516.06 = 112.94/x
  3. Step 3: Cross multiply
    344x = 516.06 × 112.94
  4. Step 4: Simplify right side
    344x = 58,283.82
  5. Step 5: Solve for x
    x = 58,283.82/344
  6. Step 6: Final answer
    x = 169.43

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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.