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Finding the Third Proportional to 61,655,181 and 128,411,175

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Solution

The third proportional to 61,655,181 and 128,411,175 is: 267,445,972.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,655,181 : 128,411,175 = 128,411,175 : x
  2. Step 2: Convert to fraction form
    61,655,181/128,411,175 = 128,411,175/x
  3. Step 3: Cross multiply
    61,655,181x = 128,411,175 × 128,411,175
  4. Step 4: Simplify right side
    61,655,181x = 16,489,429,864,880,624
  5. Step 5: Solve for x
    x = 16,489,429,864,880,624/61,655,181
  6. Step 6: Final answer
    x = 267,445,972.87

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.