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Finding the Fourth Proportional to 92.44, 138.50 and 65.02

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Solution

The fourth proportional to 92.44, 138.50 and 65.02 is: 97.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.44 : 138.50 = 65.02 : x
  2. Step 2: Convert to fraction form
    92.44/138.50 = 65.02/x
  3. Step 3: Cross multiply
    92.44x = 138.50 × 65.02
  4. Step 4: Simplify right side
    92.44x = 9,005.27
  5. Step 5: Solve for x
    x = 9,005.27/92.44
  6. Step 6: Final answer
    x = 97.42

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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.