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Finding the Fourth Proportional to 176.44, 243.24 and 118.24

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Solution

The fourth proportional to 176.44, 243.24 and 118.24 is: 163.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.44 : 243.24 = 118.24 : x
  2. Step 2: Convert to fraction form
    176.44/243.24 = 118.24/x
  3. Step 3: Cross multiply
    176.44x = 243.24 × 118.24
  4. Step 4: Simplify right side
    176.44x = 28,760.70
  5. Step 5: Solve for x
    x = 28,760.70/176.44
  6. Step 6: Final answer
    x = 163.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.