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Finding the Fourth Proportional to 155.44, 233.22 and 112

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Solution

The fourth proportional to 155.44, 233.22 and 112 is: 168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.44 : 233.22 = 112 : x
  2. Step 2: Convert to fraction form
    155.44/233.22 = 112/x
  3. Step 3: Cross multiply
    155.44x = 233.22 × 112
  4. Step 4: Simplify right side
    155.44x = 26,120.64
  5. Step 5: Solve for x
    x = 26,120.64/155.44
  6. Step 6: Final answer
    x = 168.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.