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Finding the Fourth Proportional to 183.16, 252.77 and 117.63

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Solution

The fourth proportional to 183.16, 252.77 and 117.63 is: 162.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.16 : 252.77 = 117.63 : x
  2. Step 2: Convert to fraction form
    183.16/252.77 = 117.63/x
  3. Step 3: Cross multiply
    183.16x = 252.77 × 117.63
  4. Step 4: Simplify right side
    183.16x = 29,733.34
  5. Step 5: Solve for x
    x = 29,733.34/183.16
  6. Step 6: Final answer
    x = 162.34

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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.