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Finding the Fourth Proportional to 144.01, 215.97 and 57.32

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Solution

The fourth proportional to 144.01, 215.97 and 57.32 is: 85.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144.01 : 215.97 = 57.32 : x
  2. Step 2: Convert to fraction form
    144.01/215.97 = 57.32/x
  3. Step 3: Cross multiply
    144.01x = 215.97 × 57.32
  4. Step 4: Simplify right side
    144.01x = 12,378.92
  5. Step 5: Solve for x
    x = 12,378.92/144.01
  6. Step 6: Final answer
    x = 85.96

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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.