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Finding the Fourth Proportional to 178.47, 267.67 and 116.94

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Solution

The fourth proportional to 178.47, 267.67 and 116.94 is: 175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.47 : 267.67 = 116.94 : x
  2. Step 2: Convert to fraction form
    178.47/267.67 = 116.94/x
  3. Step 3: Cross multiply
    178.47x = 267.67 × 116.94
  4. Step 4: Simplify right side
    178.47x = 31,302.48
  5. Step 5: Solve for x
    x = 31,302.48/178.47
  6. Step 6: Final answer
    x = 175.39

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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.