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Finding the Fourth Proportional to 89.06, 122.92 and 50.26

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Solution

The fourth proportional to 89.06, 122.92 and 50.26 is: 69.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89.06 : 122.92 = 50.26 : x
  2. Step 2: Convert to fraction form
    89.06/122.92 = 50.26/x
  3. Step 3: Cross multiply
    89.06x = 122.92 × 50.26
  4. Step 4: Simplify right side
    89.06x = 6,177.96
  5. Step 5: Solve for x
    x = 6,177.96/89.06
  6. Step 6: Final answer
    x = 69.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.