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Finding the Fourth Proportional to 330.98, 496.60 and 114.44

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Solution

The fourth proportional to 330.98, 496.60 and 114.44 is: 171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.98 : 496.60 = 114.44 : x
  2. Step 2: Convert to fraction form
    330.98/496.60 = 114.44/x
  3. Step 3: Cross multiply
    330.98x = 496.60 × 114.44
  4. Step 4: Simplify right side
    330.98x = 56,830.90
  5. Step 5: Solve for x
    x = 56,830.90/330.98
  6. Step 6: Final answer
    x = 171.70

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Why These Related Problems?

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