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Finding the Fourth Proportional to 355.17, 532.57 and 162.63

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Solution

The fourth proportional to 355.17, 532.57 and 162.63 is: 243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.17 : 532.57 = 162.63 : x
  2. Step 2: Convert to fraction form
    355.17/532.57 = 162.63/x
  3. Step 3: Cross multiply
    355.17x = 532.57 × 162.63
  4. Step 4: Simplify right side
    355.17x = 86,608.79
  5. Step 5: Solve for x
    x = 86,608.79/355.17
  6. Step 6: Final answer
    x = 243.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.