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Finding the Fourth Proportional to 176.12, 264.36 and 118.16

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Solution

The fourth proportional to 176.12, 264.36 and 118.16 is: 177.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.12 : 264.36 = 118.16 : x
  2. Step 2: Convert to fraction form
    176.12/264.36 = 118.16/x
  3. Step 3: Cross multiply
    176.12x = 264.36 × 118.16
  4. Step 4: Simplify right side
    176.12x = 31,236.78
  5. Step 5: Solve for x
    x = 31,236.78/176.12
  6. Step 6: Final answer
    x = 177.36

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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.