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Finding the Fourth Proportional to 355.26, 533.28 and 162.92

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Solution

The fourth proportional to 355.26, 533.28 and 162.92 is: 244.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.26 : 533.28 = 162.92 : x
  2. Step 2: Convert to fraction form
    355.26/533.28 = 162.92/x
  3. Step 3: Cross multiply
    355.26x = 533.28 × 162.92
  4. Step 4: Simplify right side
    355.26x = 86,881.98
  5. Step 5: Solve for x
    x = 86,881.98/355.26
  6. Step 6: Final answer
    x = 244.56

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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.