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Finding the Fourth Proportional to 178.74, 267.69 and 167.46

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Solution

The fourth proportional to 178.74, 267.69 and 167.46 is: 250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.74 : 267.69 = 167.46 : x
  2. Step 2: Convert to fraction form
    178.74/267.69 = 167.46/x
  3. Step 3: Cross multiply
    178.74x = 267.69 × 167.46
  4. Step 4: Simplify right side
    178.74x = 44,827.37
  5. Step 5: Solve for x
    x = 44,827.37/178.74
  6. Step 6: Final answer
    x = 250.80

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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.