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Finding the Fourth Proportional to 264.54, 396.90 and 118.26

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Solution

The fourth proportional to 264.54, 396.90 and 118.26 is: 177.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.54 : 396.90 = 118.26 : x
  2. Step 2: Convert to fraction form
    264.54/396.90 = 118.26/x
  3. Step 3: Cross multiply
    264.54x = 396.90 × 118.26
  4. Step 4: Simplify right side
    264.54x = 46,937.39
  5. Step 5: Solve for x
    x = 46,937.39/264.54
  6. Step 6: Final answer
    x = 177.43

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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.