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Finding the Third Proportional to 79,862,571 and 171,830,430

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Solution

The third proportional to 79,862,571 and 171,830,430 is: 369,706,313.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,862,571 : 171,830,430 = 171,830,430 : x
  2. Step 2: Convert to fraction form
    79,862,571/171,830,430 = 171,830,430/x
  3. Step 3: Cross multiply
    79,862,571x = 171,830,430 × 171,830,430
  4. Step 4: Simplify right side
    79,862,571x = 29,525,696,673,984,900
  5. Step 5: Solve for x
    x = 29,525,696,673,984,900/79,862,571
  6. Step 6: Final answer
    x = 369,706,313.04

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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.