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Finding the Third Proportional to 68,940,709 and 147,716,697

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Solution

The third proportional to 68,940,709 and 147,716,697 is: 316,507,081.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,940,709 : 147,716,697 = 147,716,697 : x
  2. Step 2: Convert to fraction form
    68,940,709/147,716,697 = 147,716,697/x
  3. Step 3: Cross multiply
    68,940,709x = 147,716,697 × 147,716,697
  4. Step 4: Simplify right side
    68,940,709x = 21,820,222,572,589,808
  5. Step 5: Solve for x
    x = 21,820,222,572,589,808/68,940,709
  6. Step 6: Final answer
    x = 316,507,081.07

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.