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Finding the Fourth Proportional to 349.94, 525.11 and 144.60

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Solution

The fourth proportional to 349.94, 525.11 and 144.60 is: 216.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.94 : 525.11 = 144.60 : x
  2. Step 2: Convert to fraction form
    349.94/525.11 = 144.60/x
  3. Step 3: Cross multiply
    349.94x = 525.11 × 144.60
  4. Step 4: Simplify right side
    349.94x = 75,930.18
  5. Step 5: Solve for x
    x = 75,930.18/349.94
  6. Step 6: Final answer
    x = 216.98

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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.