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Finding the Fourth Proportional to 267.96, 402 and 146.16

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Solution

The fourth proportional to 267.96, 402 and 146.16 is: 219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.96 : 402 = 146.16 : x
  2. Step 2: Convert to fraction form
    267.96/402 = 146.16/x
  3. Step 3: Cross multiply
    267.96x = 402 × 146.16
  4. Step 4: Simplify right side
    267.96x = 58,756.32
  5. Step 5: Solve for x
    x = 58,756.32/267.96
  6. Step 6: Final answer
    x = 219.27

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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.