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Finding the Fourth Proportional to 238.17, 328.73 and 160.50

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Solution

The fourth proportional to 238.17, 328.73 and 160.50 is: 221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.17 : 328.73 = 160.50 : x
  2. Step 2: Convert to fraction form
    238.17/328.73 = 160.50/x
  3. Step 3: Cross multiply
    238.17x = 328.73 × 160.50
  4. Step 4: Simplify right side
    238.17x = 52,761.17
  5. Step 5: Solve for x
    x = 52,761.17/238.17
  6. Step 6: Final answer
    x = 221.53

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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.