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Finding the Fourth Proportional to 264.74, 396.95 and 118.49

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Solution

The fourth proportional to 264.74, 396.95 and 118.49 is: 177.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.74 : 396.95 = 118.49 : x
  2. Step 2: Convert to fraction form
    264.74/396.95 = 118.49/x
  3. Step 3: Cross multiply
    264.74x = 396.95 × 118.49
  4. Step 4: Simplify right side
    264.74x = 47,032.03
  5. Step 5: Solve for x
    x = 47,032.03/264.74
  6. Step 6: Final answer
    x = 177.66

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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.