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Finding the Fourth Proportional to 194.19, 267.99 and 111.32

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Solution

The fourth proportional to 194.19, 267.99 and 111.32 is: 153.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.19 : 267.99 = 111.32 : x
  2. Step 2: Convert to fraction form
    194.19/267.99 = 111.32/x
  3. Step 3: Cross multiply
    194.19x = 267.99 × 111.32
  4. Step 4: Simplify right side
    194.19x = 29,831.31
  5. Step 5: Solve for x
    x = 29,831.31/194.19
  6. Step 6: Final answer
    x = 153.62

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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.