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Finding the Third Proportional to 72,179,209 and 170,335,606

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Solution

The third proportional to 72,179,209 and 170,335,606 is: 401,974,738.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,179,209 : 170,335,606 = 170,335,606 : x
  2. Step 2: Convert to fraction form
    72,179,209/170,335,606 = 170,335,606/x
  3. Step 3: Cross multiply
    72,179,209x = 170,335,606 × 170,335,606
  4. Step 4: Simplify right side
    72,179,209x = 29,014,218,671,387,236
  5. Step 5: Solve for x
    x = 29,014,218,671,387,236/72,179,209
  6. Step 6: Final answer
    x = 401,974,738.62

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.