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Finding the Fourth Proportional to 182.76, 252.16 and 117.16

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Solution

The fourth proportional to 182.76, 252.16 and 117.16 is: 161.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.76 : 252.16 = 117.16 : x
  2. Step 2: Convert to fraction form
    182.76/252.16 = 117.16/x
  3. Step 3: Cross multiply
    182.76x = 252.16 × 117.16
  4. Step 4: Simplify right side
    182.76x = 29,543.07
  5. Step 5: Solve for x
    x = 29,543.07/182.76
  6. Step 6: Final answer
    x = 161.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.