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Finding the Fourth Proportional to 194.24, 267.69 and 157.48

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Solution

The fourth proportional to 194.24, 267.69 and 157.48 is: 217.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.24 : 267.69 = 157.48 : x
  2. Step 2: Convert to fraction form
    194.24/267.69 = 157.48/x
  3. Step 3: Cross multiply
    194.24x = 267.69 × 157.48
  4. Step 4: Simplify right side
    194.24x = 42,156.75
  5. Step 5: Solve for x
    x = 42,156.75/194.24
  6. Step 6: Final answer
    x = 217.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.