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Finding the Fourth Proportional to 104.76, 144.62 and 69.83

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Solution

The fourth proportional to 104.76, 144.62 and 69.83 is: 96.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104.76 : 144.62 = 69.83 : x
  2. Step 2: Convert to fraction form
    104.76/144.62 = 69.83/x
  3. Step 3: Cross multiply
    104.76x = 144.62 × 69.83
  4. Step 4: Simplify right side
    104.76x = 10,098.55
  5. Step 5: Solve for x
    x = 10,098.55/104.76
  6. Step 6: Final answer
    x = 96.40

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