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Finding the Fourth Proportional to 264.67, 397.15 and 118.46

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Solution

The fourth proportional to 264.67, 397.15 and 118.46 is: 177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.67 : 397.15 = 118.46 : x
  2. Step 2: Convert to fraction form
    264.67/397.15 = 118.46/x
  3. Step 3: Cross multiply
    264.67x = 397.15 × 118.46
  4. Step 4: Simplify right side
    264.67x = 47,047.09
  5. Step 5: Solve for x
    x = 47,047.09/264.67
  6. Step 6: Final answer
    x = 177.76

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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.