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Finding the Fourth Proportional to 96.54, 144.91 and 45.23

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Solution

The fourth proportional to 96.54, 144.91 and 45.23 is: 67.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.54 : 144.91 = 45.23 : x
  2. Step 2: Convert to fraction form
    96.54/144.91 = 45.23/x
  3. Step 3: Cross multiply
    96.54x = 144.91 × 45.23
  4. Step 4: Simplify right side
    96.54x = 6,554.58
  5. Step 5: Solve for x
    x = 6,554.58/96.54
  6. Step 6: Final answer
    x = 67.89

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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.