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Finding the Fourth Proportional to 225,505,725.20, 315,027,770.80 and 225,505,725.20

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Solution

The fourth proportional to 225,505,725.20, 315,027,770.80 and 225,505,725.20 is: 315,027,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,505,725.20 : 315,027,770.80 = 225,505,725.20 : x
  2. Step 2: Convert to fraction form
    225,505,725.20/315,027,770.80 = 225,505,725.20/x
  3. Step 3: Cross multiply
    225,505,725.20x = 315,027,770.80 × 225,505,725.20
  4. Step 4: Simplify right side
    225,505,725.20x = 71,040,565,912,393,384
  5. Step 5: Solve for x
    x = 71,040,565,912,393,384/225,505,725.20
  6. Step 6: Final answer
    x = 315,027,770.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.