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Finding the Third Proportional to 35,918,098 and 78,789,421

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Solution

The third proportional to 35,918,098 and 78,789,421 is: 172,831,335.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,918,098 : 78,789,421 = 78,789,421 : x
  2. Step 2: Convert to fraction form
    35,918,098/78,789,421 = 78,789,421/x
  3. Step 3: Cross multiply
    35,918,098x = 78,789,421 × 78,789,421
  4. Step 4: Simplify right side
    35,918,098x = 6,207,772,861,515,241
  5. Step 5: Solve for x
    x = 6,207,772,861,515,241/35,918,098
  6. Step 6: Final answer
    x = 172,831,335.93

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.