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Finding the Fourth Proportional to 201,449,625.80, 302,174,438.70 and 80,367,974.60

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Solution

The fourth proportional to 201,449,625.80, 302,174,438.70 and 80,367,974.60 is: 120,551,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,449,625.80 : 302,174,438.70 = 80,367,974.60 : x
  2. Step 2: Convert to fraction form
    201,449,625.80/302,174,438.70 = 80,367,974.60/x
  3. Step 3: Cross multiply
    201,449,625.80x = 302,174,438.70 × 80,367,974.60
  4. Step 4: Simplify right side
    201,449,625.80x = 24,285,147,614,210,856
  5. Step 5: Solve for x
    x = 24,285,147,614,210,856/201,449,625.80
  6. Step 6: Final answer
    x = 120,551,961.90

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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.