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Finding the Third Proportional to 61,239,727 and 90,711,619

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Solution

The third proportional to 61,239,727 and 90,711,619 is: 134,366,990.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,239,727 : 90,711,619 = 90,711,619 : x
  2. Step 2: Convert to fraction form
    61,239,727/90,711,619 = 90,711,619/x
  3. Step 3: Cross multiply
    61,239,727x = 90,711,619 × 90,711,619
  4. Step 4: Simplify right side
    61,239,727x = 8,228,597,821,601,161
  5. Step 5: Solve for x
    x = 8,228,597,821,601,161/61,239,727
  6. Step 6: Final answer
    x = 134,366,990.59

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.