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Finding the Third Proportional to 61,655,592 and 128,411,916

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Solution

The third proportional to 61,655,592 and 128,411,916 is: 267,447,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,655,592 : 128,411,916 = 128,411,916 : x
  2. Step 2: Convert to fraction form
    61,655,592/128,411,916 = 128,411,916/x
  3. Step 3: Cross multiply
    61,655,592x = 128,411,916 × 128,411,916
  4. Step 4: Simplify right side
    61,655,592x = 16,489,620,170,791,056
  5. Step 5: Solve for x
    x = 16,489,620,170,791,056/61,655,592
  6. Step 6: Final answer
    x = 267,447,276.65

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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.