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Finding the Third Proportional to 68,816,634 and 145,605,126

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Solution

The third proportional to 68,816,634 and 145,605,126 is: 308,077,444.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,816,634 : 145,605,126 = 145,605,126 : x
  2. Step 2: Convert to fraction form
    68,816,634/145,605,126 = 145,605,126/x
  3. Step 3: Cross multiply
    68,816,634x = 145,605,126 × 145,605,126
  4. Step 4: Simplify right side
    68,816,634x = 21,200,852,717,475,876
  5. Step 5: Solve for x
    x = 21,200,852,717,475,876/68,816,634
  6. Step 6: Final answer
    x = 308,077,444.15

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.