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Finding the Fourth Proportional to 252.33, 376.59 and 225

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Solution

The fourth proportional to 252.33, 376.59 and 225 is: 335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.33 : 376.59 = 225 : x
  2. Step 2: Convert to fraction form
    252.33/376.59 = 225/x
  3. Step 3: Cross multiply
    252.33x = 376.59 × 225
  4. Step 4: Simplify right side
    252.33x = 84,732.75
  5. Step 5: Solve for x
    x = 84,732.75/252.33
  6. Step 6: Final answer
    x = 335.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.