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Finding the Third Proportional to 76,606,890 and 121,955,766

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Solution

The third proportional to 76,606,890 and 121,955,766 is: 194,149,754.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,606,890 : 121,955,766 = 121,955,766 : x
  2. Step 2: Convert to fraction form
    76,606,890/121,955,766 = 121,955,766/x
  3. Step 3: Cross multiply
    76,606,890x = 121,955,766 × 121,955,766
  4. Step 4: Simplify right side
    76,606,890x = 14,873,208,860,646,756
  5. Step 5: Solve for x
    x = 14,873,208,860,646,756/76,606,890
  6. Step 6: Final answer
    x = 194,149,754.16

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.