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Finding the Fourth Proportional to 216.74, 325.46 and 95.24

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Solution

The fourth proportional to 216.74, 325.46 and 95.24 is: 143.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    216.74 : 325.46 = 95.24 : x
  2. Step 2: Convert to fraction form
    216.74/325.46 = 95.24/x
  3. Step 3: Cross multiply
    216.74x = 325.46 × 95.24
  4. Step 4: Simplify right side
    216.74x = 30,997.86
  5. Step 5: Solve for x
    x = 30,997.86/216.74
  6. Step 6: Final answer
    x = 143.02

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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.