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Finding the Fourth Proportional to 176.50, 264.57 and 117.85

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Solution

The fourth proportional to 176.50, 264.57 and 117.85 is: 176.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.50 : 264.57 = 117.85 : x
  2. Step 2: Convert to fraction form
    176.50/264.57 = 117.85/x
  3. Step 3: Cross multiply
    176.50x = 264.57 × 117.85
  4. Step 4: Simplify right side
    176.50x = 31,179.57
  5. Step 5: Solve for x
    x = 31,179.57/176.50
  6. Step 6: Final answer
    x = 176.65

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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.