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Finding the Third Proportional to 81,206,744 and 175,357,312

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Solution

The third proportional to 81,206,744 and 175,357,312 is: 378,665,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,206,744 : 175,357,312 = 175,357,312 : x
  2. Step 2: Convert to fraction form
    81,206,744/175,357,312 = 175,357,312/x
  3. Step 3: Cross multiply
    81,206,744x = 175,357,312 × 175,357,312
  4. Step 4: Simplify right side
    81,206,744x = 30,750,186,871,865,344
  5. Step 5: Solve for x
    x = 30,750,186,871,865,344/81,206,744
  6. Step 6: Final answer
    x = 378,665,432.91

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.