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Finding the Third Proportional to 103,633,878 and 221,616,660

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Solution

The third proportional to 103,633,878 and 221,616,660 is: 473,917,843.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,633,878 : 221,616,660 = 221,616,660 : x
  2. Step 2: Convert to fraction form
    103,633,878/221,616,660 = 221,616,660/x
  3. Step 3: Cross multiply
    103,633,878x = 221,616,660 × 221,616,660
  4. Step 4: Simplify right side
    103,633,878x = 49,113,943,989,555,600
  5. Step 5: Solve for x
    x = 49,113,943,989,555,600/103,633,878
  6. Step 6: Final answer
    x = 473,917,843.64

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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.