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Finding the Third Proportional to 70,720,821 and 106,344,441

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Solution

The third proportional to 70,720,821 and 106,344,441 is: 159,912,455.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,720,821 : 106,344,441 = 106,344,441 : x
  2. Step 2: Convert to fraction form
    70,720,821/106,344,441 = 106,344,441/x
  3. Step 3: Cross multiply
    70,720,821x = 106,344,441 × 106,344,441
  4. Step 4: Simplify right side
    70,720,821x = 11,309,140,131,602,480
  5. Step 5: Solve for x
    x = 11,309,140,131,602,480/70,720,821
  6. Step 6: Final answer
    x = 159,912,455.37

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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.