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Finding the Fourth Proportional to 363,957,240.80, 545,935,861.20 and 159,883,896.80

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Solution

The fourth proportional to 363,957,240.80, 545,935,861.20 and 159,883,896.80 is: 239,825,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,957,240.80 : 545,935,861.20 = 159,883,896.80 : x
  2. Step 2: Convert to fraction form
    363,957,240.80/545,935,861.20 = 159,883,896.80/x
  3. Step 3: Cross multiply
    363,957,240.80x = 545,935,861.20 × 159,883,896.80
  4. Step 4: Simplify right side
    363,957,240.80x = 87,286,352,891,519,936
  5. Step 5: Solve for x
    x = 87,286,352,891,519,936/363,957,240.80
  6. Step 6: Final answer
    x = 239,825,845.20

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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.