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Finding the Fourth Proportional to 363,957,431.80, 545,936,147.70 and 159,884,087.80

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Solution

The fourth proportional to 363,957,431.80, 545,936,147.70 and 159,884,087.80 is: 239,826,131.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,957,431.80 : 545,936,147.70 = 159,884,087.80 : x
  2. Step 2: Convert to fraction form
    363,957,431.80/545,936,147.70 = 159,884,087.80/x
  3. Step 3: Cross multiply
    363,957,431.80x = 545,936,147.70 × 159,884,087.80
  4. Step 4: Simplify right side
    363,957,431.80x = 87,286,502,972,060,576
  5. Step 5: Solve for x
    x = 87,286,502,972,060,576/363,957,431.80
  6. Step 6: Final answer
    x = 239,826,131.70

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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.