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Finding the Fourth Proportional to 264.60, 396.42 and 134.46

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Solution

The fourth proportional to 264.60, 396.42 and 134.46 is: 201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.60 : 396.42 = 134.46 : x
  2. Step 2: Convert to fraction form
    264.60/396.42 = 134.46/x
  3. Step 3: Cross multiply
    264.60x = 396.42 × 134.46
  4. Step 4: Simplify right side
    264.60x = 53,302.63
  5. Step 5: Solve for x
    x = 53,302.63/264.60
  6. Step 6: Final answer
    x = 201.45

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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.