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Finding the Fourth Proportional to 178, 267.08 and 116.28

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Solution

The fourth proportional to 178, 267.08 and 116.28 is: 174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    178 : 267.08 = 116.28 : x
  2. Step 2: Convert to fraction form
    178/267.08 = 116.28/x
  3. Step 3: Cross multiply
    178x = 267.08 × 116.28
  4. Step 4: Simplify right side
    178x = 31,056.06
  5. Step 5: Solve for x
    x = 31,056.06/178
  6. Step 6: Final answer
    x = 174.47

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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.