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Finding the Third Proportional to 79,907,976 and 171,943,587

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Solution

The third proportional to 79,907,976 and 171,943,587 is: 369,983,055.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,907,976 : 171,943,587 = 171,943,587 : x
  2. Step 2: Convert to fraction form
    79,907,976/171,943,587 = 171,943,587/x
  3. Step 3: Cross multiply
    79,907,976x = 171,943,587 × 171,943,587
  4. Step 4: Simplify right side
    79,907,976x = 29,564,597,110,426,568
  5. Step 5: Solve for x
    x = 29,564,597,110,426,568/79,907,976
  6. Step 6: Final answer
    x = 369,983,055.39

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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.