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Finding the Fourth Proportional to 70,883,273.70, 106,324,910.55 and 30,572,489.70

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Solution

The fourth proportional to 70,883,273.70, 106,324,910.55 and 30,572,489.70 is: 45,858,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,883,273.70 : 106,324,910.55 = 30,572,489.70 : x
  2. Step 2: Convert to fraction form
    70,883,273.70/106,324,910.55 = 30,572,489.70/x
  3. Step 3: Cross multiply
    70,883,273.70x = 106,324,910.55 × 30,572,489.70
  4. Step 4: Simplify right side
    70,883,273.70x = 3,250,617,232,643,296
  5. Step 5: Solve for x
    x = 3,250,617,232,643,296/70,883,273.70
  6. Step 6: Final answer
    x = 45,858,734.55

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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.