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Finding the Third Proportional to 76,820,673 and 168,964,131

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Solution

The third proportional to 76,820,673 and 168,964,131 is: 371,630,141.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,820,673 : 168,964,131 = 168,964,131 : x
  2. Step 2: Convert to fraction form
    76,820,673/168,964,131 = 168,964,131/x
  3. Step 3: Cross multiply
    76,820,673x = 168,964,131 × 168,964,131
  4. Step 4: Simplify right side
    76,820,673x = 28,548,877,564,585,160
  5. Step 5: Solve for x
    x = 28,548,877,564,585,160/76,820,673
  6. Step 6: Final answer
    x = 371,630,141.34

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.