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Finding the Third Proportional to 81,163,215 and 125,725,709.25

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Solution

The third proportional to 81,163,215 and 125,725,709.25 is: 194,755,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,163,215 : 125,725,709.25 = 125,725,709.25 : x
  2. Step 2: Convert to fraction form
    81,163,215/125,725,709.25 = 125,725,709.25/x
  3. Step 3: Cross multiply
    81,163,215x = 125,725,709.25 × 125,725,709.25
  4. Step 4: Simplify right side
    81,163,215x = 15,806,953,966,415,536
  5. Step 5: Solve for x
    x = 15,806,953,966,415,536/81,163,215
  6. Step 6: Final answer
    x = 194,755,148.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.