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Finding the Third Proportional to 90,752,066 and 199,137,220

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Solution

The third proportional to 90,752,066 and 199,137,220 is: 436,966,717.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,752,066 : 199,137,220 = 199,137,220 : x
  2. Step 2: Convert to fraction form
    90,752,066/199,137,220 = 199,137,220/x
  3. Step 3: Cross multiply
    90,752,066x = 199,137,220 × 199,137,220
  4. Step 4: Simplify right side
    90,752,066x = 39,655,632,389,328,400
  5. Step 5: Solve for x
    x = 39,655,632,389,328,400/90,752,066
  6. Step 6: Final answer
    x = 436,966,717.53

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.