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Finding the Fourth Proportional to 178.94, 246.72 and 174.44

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Solution

The fourth proportional to 178.94, 246.72 and 174.44 is: 240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.94 : 246.72 = 174.44 : x
  2. Step 2: Convert to fraction form
    178.94/246.72 = 174.44/x
  3. Step 3: Cross multiply
    178.94x = 246.72 × 174.44
  4. Step 4: Simplify right side
    178.94x = 43,037.84
  5. Step 5: Solve for x
    x = 43,037.84/178.94
  6. Step 6: Final answer
    x = 240.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.