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Finding the Fourth Proportional to 155.17, 232.48 and 149.57

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Solution

The fourth proportional to 155.17, 232.48 and 149.57 is: 224.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.17 : 232.48 = 149.57 : x
  2. Step 2: Convert to fraction form
    155.17/232.48 = 149.57/x
  3. Step 3: Cross multiply
    155.17x = 232.48 × 149.57
  4. Step 4: Simplify right side
    155.17x = 34,772.03
  5. Step 5: Solve for x
    x = 34,772.03/155.17
  6. Step 6: Final answer
    x = 224.09

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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.