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Finding the Third Proportional to 99,470,630 and 214,057,809

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Solution

The third proportional to 99,470,630 and 214,057,809 is: 460,645,977.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,470,630 : 214,057,809 = 214,057,809 : x
  2. Step 2: Convert to fraction form
    99,470,630/214,057,809 = 214,057,809/x
  3. Step 3: Cross multiply
    99,470,630x = 214,057,809 × 214,057,809
  4. Step 4: Simplify right side
    99,470,630x = 45,820,745,593,880,480
  5. Step 5: Solve for x
    x = 45,820,745,593,880,480/99,470,630
  6. Step 6: Final answer
    x = 460,645,977.55

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.