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Finding the Fourth Proportional to 153.16, 229.18 and 95.44

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Solution

The fourth proportional to 153.16, 229.18 and 95.44 is: 142.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.16 : 229.18 = 95.44 : x
  2. Step 2: Convert to fraction form
    153.16/229.18 = 95.44/x
  3. Step 3: Cross multiply
    153.16x = 229.18 × 95.44
  4. Step 4: Simplify right side
    153.16x = 21,872.94
  5. Step 5: Solve for x
    x = 21,872.94/153.16
  6. Step 6: Final answer
    x = 142.81

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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.