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Finding the Fourth Proportional to 234,874.20, 352,323.15 and 66,406.62

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Solution

The fourth proportional to 234,874.20, 352,323.15 and 66,406.62 is: 99,613.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,874.20 : 352,323.15 = 66,406.62 : x
  2. Step 2: Convert to fraction form
    234,874.20/352,323.15 = 66,406.62/x
  3. Step 3: Cross multiply
    234,874.20x = 352,323.15 × 66,406.62
  4. Step 4: Simplify right side
    234,874.20x = 23,396,589,539.25
  5. Step 5: Solve for x
    x = 23,396,589,539.25/234,874.20
  6. Step 6: Final answer
    x = 99,613.28

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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.