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Finding the Fourth Proportional to 330.06, 455.48 and 182.70

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Solution

The fourth proportional to 330.06, 455.48 and 182.70 is: 252.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.06 : 455.48 = 182.70 : x
  2. Step 2: Convert to fraction form
    330.06/455.48 = 182.70/x
  3. Step 3: Cross multiply
    330.06x = 455.48 × 182.70
  4. Step 4: Simplify right side
    330.06x = 83,215.28
  5. Step 5: Solve for x
    x = 83,215.28/330.06
  6. Step 6: Final answer
    x = 252.12

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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.