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Finding the Third Proportional to 79,712,112 and 171,649,632

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Solution

The third proportional to 79,712,112 and 171,649,632 is: 369,625,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,712,112 : 171,649,632 = 171,649,632 : x
  2. Step 2: Convert to fraction form
    79,712,112/171,649,632 = 171,649,632/x
  3. Step 3: Cross multiply
    79,712,112x = 171,649,632 × 171,649,632
  4. Step 4: Simplify right side
    79,712,112x = 29,463,596,165,735,424
  5. Step 5: Solve for x
    x = 29,463,596,165,735,424/79,712,112
  6. Step 6: Final answer
    x = 369,625,084.90

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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.