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Finding the Fourth Proportional to 160.36, 221.26 and 94.87

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Solution

The fourth proportional to 160.36, 221.26 and 94.87 is: 130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.36 : 221.26 = 94.87 : x
  2. Step 2: Convert to fraction form
    160.36/221.26 = 94.87/x
  3. Step 3: Cross multiply
    160.36x = 221.26 × 94.87
  4. Step 4: Simplify right side
    160.36x = 20,990.94
  5. Step 5: Solve for x
    x = 20,990.94/160.36
  6. Step 6: Final answer
    x = 130.90

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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.