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Finding the Fourth Proportional to 177.53, 244.89 and 111.92

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Solution

The fourth proportional to 177.53, 244.89 and 111.92 is: 154.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.53 : 244.89 = 111.92 : x
  2. Step 2: Convert to fraction form
    177.53/244.89 = 111.92/x
  3. Step 3: Cross multiply
    177.53x = 244.89 × 111.92
  4. Step 4: Simplify right side
    177.53x = 27,408.09
  5. Step 5: Solve for x
    x = 27,408.09/177.53
  6. Step 6: Final answer
    x = 154.39

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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.