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Finding the Third Proportional to 61,561.50 and 132,621.75

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Solution

The third proportional to 61,561.50 and 132,621.75 is: 285,706.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,561.50 : 132,621.75 = 132,621.75 : x
  2. Step 2: Convert to fraction form
    61,561.50/132,621.75 = 132,621.75/x
  3. Step 3: Cross multiply
    61,561.50x = 132,621.75 × 132,621.75
  4. Step 4: Simplify right side
    61,561.50x = 17,588,528,573.06
  5. Step 5: Solve for x
    x = 17,588,528,573.06/61,561.50
  6. Step 6: Final answer
    x = 285,706.63

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.