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Finding the Fourth Proportional to 194.08, 267.83 and 106.75

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Solution

The fourth proportional to 194.08, 267.83 and 106.75 is: 147.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.08 : 267.83 = 106.75 : x
  2. Step 2: Convert to fraction form
    194.08/267.83 = 106.75/x
  3. Step 3: Cross multiply
    194.08x = 267.83 × 106.75
  4. Step 4: Simplify right side
    194.08x = 28,590.72
  5. Step 5: Solve for x
    x = 28,590.72/194.08
  6. Step 6: Final answer
    x = 147.32

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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.