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Finding the Fourth Proportional to 324,469,863.72, 447,768,409.78 and 177,788,998.44

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Solution

The fourth proportional to 324,469,863.72, 447,768,409.78 and 177,788,998.44 is: 245,348,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,469,863.72 : 447,768,409.78 = 177,788,998.44 : x
  2. Step 2: Convert to fraction form
    324,469,863.72/447,768,409.78 = 177,788,998.44/x
  3. Step 3: Cross multiply
    324,469,863.72x = 447,768,409.78 × 177,788,998.44
  4. Step 4: Simplify right side
    324,469,863.72x = 79,608,297,107,857,696
  5. Step 5: Solve for x
    x = 79,608,297,107,857,696/324,469,863.72
  6. Step 6: Final answer
    x = 245,348,816.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.