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Finding the Fourth Proportional to 235,234.80, 352,873.32 and 66,757.68

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Solution

The fourth proportional to 235,234.80, 352,873.32 and 66,757.68 is: 100,142.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,234.80 : 352,873.32 = 66,757.68 : x
  2. Step 2: Convert to fraction form
    235,234.80/352,873.32 = 66,757.68/x
  3. Step 3: Cross multiply
    235,234.80x = 352,873.32 × 66,757.68
  4. Step 4: Simplify right side
    235,234.80x = 23,557,004,177.10
  5. Step 5: Solve for x
    x = 23,557,004,177.10/235,234.80
  6. Step 6: Final answer
    x = 100,142.51

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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.