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Finding the Fourth Proportional to 96,699.67, 144,909.30 and 68,674.61

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Solution

The fourth proportional to 96,699.67, 144,909.30 and 68,674.61 is: 102,912.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,699.67 : 144,909.30 = 68,674.61 : x
  2. Step 2: Convert to fraction form
    96,699.67/144,909.30 = 68,674.61/x
  3. Step 3: Cross multiply
    96,699.67x = 144,909.30 × 68,674.61
  4. Step 4: Simplify right side
    96,699.67x = 9,951,589,662.87
  5. Step 5: Solve for x
    x = 9,951,589,662.87/96,699.67
  6. Step 6: Final answer
    x = 102,912.34

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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.