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Finding the Fourth Proportional to 252.12, 348.08 and 194.04

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Solution

The fourth proportional to 252.12, 348.08 and 194.04 is: 267.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.12 : 348.08 = 194.04 : x
  2. Step 2: Convert to fraction form
    252.12/348.08 = 194.04/x
  3. Step 3: Cross multiply
    252.12x = 348.08 × 194.04
  4. Step 4: Simplify right side
    252.12x = 67,541.44
  5. Step 5: Solve for x
    x = 67,541.44/252.12
  6. Step 6: Final answer
    x = 267.89

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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.