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Finding the Fourth Proportional to 268.52, 402.26 and 176.94

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Solution

The fourth proportional to 268.52, 402.26 and 176.94 is: 265.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.52 : 402.26 = 176.94 : x
  2. Step 2: Convert to fraction form
    268.52/402.26 = 176.94/x
  3. Step 3: Cross multiply
    268.52x = 402.26 × 176.94
  4. Step 4: Simplify right side
    268.52x = 71,176.89
  5. Step 5: Solve for x
    x = 71,176.89/268.52
  6. Step 6: Final answer
    x = 265.07

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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.