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Finding the Third Proportional to 126,890,478 and 191,175,813

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Solution

The third proportional to 126,890,478 and 191,175,813 is: 288,029,425.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,890,478 : 191,175,813 = 191,175,813 : x
  2. Step 2: Convert to fraction form
    126,890,478/191,175,813 = 191,175,813/x
  3. Step 3: Cross multiply
    126,890,478x = 191,175,813 × 191,175,813
  4. Step 4: Simplify right side
    126,890,478x = 36,548,191,476,210,968
  5. Step 5: Solve for x
    x = 36,548,191,476,210,968/126,890,478
  6. Step 6: Final answer
    x = 288,029,425.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.