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Finding the Fourth Proportional to 94.22, 141.26 and 48.56

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Solution

The fourth proportional to 94.22, 141.26 and 48.56 is: 72.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    94.22 : 141.26 = 48.56 : x
  2. Step 2: Convert to fraction form
    94.22/141.26 = 48.56/x
  3. Step 3: Cross multiply
    94.22x = 141.26 × 48.56
  4. Step 4: Simplify right side
    94.22x = 6,858.64
  5. Step 5: Solve for x
    x = 6,858.64/94.22
  6. Step 6: Final answer
    x = 72.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.