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Finding the Fourth Proportional to 234,758.43, 352,131.39 and 66,290.40

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Solution

The fourth proportional to 234,758.43, 352,131.39 and 66,290.40 is: 99,433.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,758.43 : 352,131.39 = 66,290.40 : x
  2. Step 2: Convert to fraction form
    234,758.43/352,131.39 = 66,290.40/x
  3. Step 3: Cross multiply
    234,758.43x = 352,131.39 × 66,290.40
  4. Step 4: Simplify right side
    234,758.43x = 23,342,930,695.66
  5. Step 5: Solve for x
    x = 23,342,930,695.66/234,758.43
  6. Step 6: Final answer
    x = 99,433.83

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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.