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Finding the Fourth Proportional to 269,804,404, 372,380,517.84 and 153,910,900

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Solution

The fourth proportional to 269,804,404, 372,380,517.84 and 153,910,900 is: 212,425,815.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,804,404 : 372,380,517.84 = 153,910,900 : x
  2. Step 2: Convert to fraction form
    269,804,404/372,380,517.84 = 153,910,900/x
  3. Step 3: Cross multiply
    269,804,404x = 372,380,517.84 × 153,910,900
  4. Step 4: Simplify right side
    269,804,404x = 57,313,420,643,220,448
  5. Step 5: Solve for x
    x = 57,313,420,643,220,448/269,804,404
  6. Step 6: Final answer
    x = 212,425,815.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.