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Finding the Third Proportional to 70,120.88 and 154,260.38

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Solution

The third proportional to 70,120.88 and 154,260.38 is: 339,360.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,120.88 : 154,260.38 = 154,260.38 : x
  2. Step 2: Convert to fraction form
    70,120.88/154,260.38 = 154,260.38/x
  3. Step 3: Cross multiply
    70,120.88x = 154,260.38 × 154,260.38
  4. Step 4: Simplify right side
    70,120.88x = 23,796,263,295.14
  5. Step 5: Solve for x
    x = 23,796,263,295.14/70,120.88
  6. Step 6: Final answer
    x = 339,360.62

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.