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Finding the Third Proportional to 79,274,211 and 121,280,613

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Solution

The third proportional to 79,274,211 and 121,280,613 is: 185,545,676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,274,211 : 121,280,613 = 121,280,613 : x
  2. Step 2: Convert to fraction form
    79,274,211/121,280,613 = 121,280,613/x
  3. Step 3: Cross multiply
    79,274,211x = 121,280,613 × 121,280,613
  4. Step 4: Simplify right side
    79,274,211x = 14,708,987,089,655,768
  5. Step 5: Solve for x
    x = 14,708,987,089,655,768/79,274,211
  6. Step 6: Final answer
    x = 185,545,676.26

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.