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Finding the Fourth Proportional to 194.01, 267.64 and 111.12

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Solution

The fourth proportional to 194.01, 267.64 and 111.12 is: 153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.01 : 267.64 = 111.12 : x
  2. Step 2: Convert to fraction form
    194.01/267.64 = 111.12/x
  3. Step 3: Cross multiply
    194.01x = 267.64 × 111.12
  4. Step 4: Simplify right side
    194.01x = 29,740.16
  5. Step 5: Solve for x
    x = 29,740.16/194.01
  6. Step 6: Final answer
    x = 153.29

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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.