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Finding the Fourth Proportional to 176.96, 244.24 and 118

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Solution

The fourth proportional to 176.96, 244.24 and 118 is: 162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.96 : 244.24 = 118 : x
  2. Step 2: Convert to fraction form
    176.96/244.24 = 118/x
  3. Step 3: Cross multiply
    176.96x = 244.24 × 118
  4. Step 4: Simplify right side
    176.96x = 28,820.32
  5. Step 5: Solve for x
    x = 28,820.32/176.96
  6. Step 6: Final answer
    x = 162.86

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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.