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Finding the Fourth Proportional to 367.52, 551.01 and 172.41

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Solution

The fourth proportional to 367.52, 551.01 and 172.41 is: 258.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.52 : 551.01 = 172.41 : x
  2. Step 2: Convert to fraction form
    367.52/551.01 = 172.41/x
  3. Step 3: Cross multiply
    367.52x = 551.01 × 172.41
  4. Step 4: Simplify right side
    367.52x = 94,997.57
  5. Step 5: Solve for x
    x = 94,997.57/367.52
  6. Step 6: Final answer
    x = 258.49

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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.