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Finding the Fourth Proportional to 92.00, 137.91 and 46.32

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Solution

The fourth proportional to 92.00, 137.91 and 46.32 is: 69.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.00 : 137.91 = 46.32 : x
  2. Step 2: Convert to fraction form
    92.00/137.91 = 46.32/x
  3. Step 3: Cross multiply
    92.00x = 137.91 × 46.32
  4. Step 4: Simplify right side
    92.00x = 6,387.99
  5. Step 5: Solve for x
    x = 6,387.99/92.00
  6. Step 6: Final answer
    x = 69.44

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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.