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Finding the Fourth Proportional to 541,324,866.40, 811,987,299.60 and 132,375,695.20

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Solution

The fourth proportional to 541,324,866.40, 811,987,299.60 and 132,375,695.20 is: 198,563,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,324,866.40 : 811,987,299.60 = 132,375,695.20 : x
  2. Step 2: Convert to fraction form
    541,324,866.40/811,987,299.60 = 132,375,695.20/x
  3. Step 3: Cross multiply
    541,324,866.40x = 811,987,299.60 × 132,375,695.20
  4. Step 4: Simplify right side
    541,324,866.40x = 107,487,383,278,120,688
  5. Step 5: Solve for x
    x = 107,487,383,278,120,688/541,324,866.40
  6. Step 6: Final answer
    x = 198,563,542.80

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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.