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Finding the Fourth Proportional to 262.67, 393.75 and 116.29

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Solution

The fourth proportional to 262.67, 393.75 and 116.29 is: 174.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.67 : 393.75 = 116.29 : x
  2. Step 2: Convert to fraction form
    262.67/393.75 = 116.29/x
  3. Step 3: Cross multiply
    262.67x = 393.75 × 116.29
  4. Step 4: Simplify right side
    262.67x = 45,789.19
  5. Step 5: Solve for x
    x = 45,789.19/262.67
  6. Step 6: Final answer
    x = 174.32

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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.