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Finding the Fourth Proportional to 355.18, 532.41 and 162.94

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Solution

The fourth proportional to 355.18, 532.41 and 162.94 is: 244.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.18 : 532.41 = 162.94 : x
  2. Step 2: Convert to fraction form
    355.18/532.41 = 162.94/x
  3. Step 3: Cross multiply
    355.18x = 532.41 × 162.94
  4. Step 4: Simplify right side
    355.18x = 86,750.89
  5. Step 5: Solve for x
    x = 86,750.89/355.18
  6. Step 6: Final answer
    x = 244.24

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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.