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Finding the Fourth Proportional to 84,662,309.70, 126,993,464.55 and 84,662,309.70

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Solution

The fourth proportional to 84,662,309.70, 126,993,464.55 and 84,662,309.70 is: 126,993,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,662,309.70 : 126,993,464.55 = 84,662,309.70 : x
  2. Step 2: Convert to fraction form
    84,662,309.70/126,993,464.55 = 84,662,309.70/x
  3. Step 3: Cross multiply
    84,662,309.70x = 126,993,464.55 × 84,662,309.70
  4. Step 4: Simplify right side
    84,662,309.70x = 10,751,560,025,608,072
  5. Step 5: Solve for x
    x = 10,751,560,025,608,072/84,662,309.70
  6. Step 6: Final answer
    x = 126,993,464.55

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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.