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Finding the Fourth Proportional to 269,991.39, 404,767.98 and 112,337.85

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Solution

The fourth proportional to 269,991.39, 404,767.98 and 112,337.85 is: 168,415.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,991.39 : 404,767.98 = 112,337.85 : x
  2. Step 2: Convert to fraction form
    269,991.39/404,767.98 = 112,337.85/x
  3. Step 3: Cross multiply
    269,991.39x = 404,767.98 × 112,337.85
  4. Step 4: Simplify right side
    269,991.39x = 45,470,764,622.04
  5. Step 5: Solve for x
    x = 45,470,764,622.04/269,991.39
  6. Step 6: Final answer
    x = 168,415.61

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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.