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Finding the Third Proportional to 61,136 and 91,704

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Solution

The third proportional to 61,136 and 91,704 is: 137,556

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,136 : 91,704 = 91,704 : x
  2. Step 2: Convert to fraction form
    61,136/91,704 = 91,704/x
  3. Step 3: Cross multiply
    61,136x = 91,704 × 91,704
  4. Step 4: Simplify right side
    61,136x = 8,409,623,616
  5. Step 5: Solve for x
    x = 8,409,623,616/61,136
  6. Step 6: Final answer
    x = 137,556

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.