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Finding the Fourth Proportional to 92.02, 137.82 and 46.27

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Solution

The fourth proportional to 92.02, 137.82 and 46.27 is: 69.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.02 : 137.82 = 46.27 : x
  2. Step 2: Convert to fraction form
    92.02/137.82 = 46.27/x
  3. Step 3: Cross multiply
    92.02x = 137.82 × 46.27
  4. Step 4: Simplify right side
    92.02x = 6,376.93
  5. Step 5: Solve for x
    x = 6,376.93/92.02
  6. Step 6: Final answer
    x = 69.30

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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.