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Finding the Fourth Proportional to 182.90, 252.42 and 104.22

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Solution

The fourth proportional to 182.90, 252.42 and 104.22 is: 143.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.90 : 252.42 = 104.22 : x
  2. Step 2: Convert to fraction form
    182.90/252.42 = 104.22/x
  3. Step 3: Cross multiply
    182.90x = 252.42 × 104.22
  4. Step 4: Simplify right side
    182.90x = 26,307.21
  5. Step 5: Solve for x
    x = 26,307.21/182.90
  6. Step 6: Final answer
    x = 143.83

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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.