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Finding the Fourth Proportional to 178.24, 267.43 and 70.06

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Solution

The fourth proportional to 178.24, 267.43 and 70.06 is: 105.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.24 : 267.43 = 70.06 : x
  2. Step 2: Convert to fraction form
    178.24/267.43 = 70.06/x
  3. Step 3: Cross multiply
    178.24x = 267.43 × 70.06
  4. Step 4: Simplify right side
    178.24x = 18,736.15
  5. Step 5: Solve for x
    x = 18,736.15/178.24
  6. Step 6: Final answer
    x = 105.12

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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.