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Finding the Fourth Proportional to 262,203,544.80, 393,250,204.80 and 132,689,404.80

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Solution

The fourth proportional to 262,203,544.80, 393,250,204.80 and 132,689,404.80 is: 199,006,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,203,544.80 : 393,250,204.80 = 132,689,404.80 : x
  2. Step 2: Convert to fraction form
    262,203,544.80/393,250,204.80 = 132,689,404.80/x
  3. Step 3: Cross multiply
    262,203,544.80x = 393,250,204.80 × 132,689,404.80
  4. Step 4: Simplify right side
    262,203,544.80x = 52,180,135,612,390,104
  5. Step 5: Solve for x
    x = 52,180,135,612,390,104/262,203,544.80
  6. Step 6: Final answer
    x = 199,006,217.30

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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.