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Finding the Fourth Proportional to 273.76, 410.63 and 111.44

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Solution

The fourth proportional to 273.76, 410.63 and 111.44 is: 167.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.76 : 410.63 = 111.44 : x
  2. Step 2: Convert to fraction form
    273.76/410.63 = 111.44/x
  3. Step 3: Cross multiply
    273.76x = 410.63 × 111.44
  4. Step 4: Simplify right side
    273.76x = 45,760.61
  5. Step 5: Solve for x
    x = 45,760.61/273.76
  6. Step 6: Final answer
    x = 167.16

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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.