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Finding the Third Proportional to 102,561.75 and 155,257.88

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Solution

The third proportional to 102,561.75 and 155,257.88 is: 235,029.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,561.75 : 155,257.88 = 155,257.88 : x
  2. Step 2: Convert to fraction form
    102,561.75/155,257.88 = 155,257.88/x
  3. Step 3: Cross multiply
    102,561.75x = 155,257.88 × 155,257.88
  4. Step 4: Simplify right side
    102,561.75x = 24,105,007,749.52
  5. Step 5: Solve for x
    x = 24,105,007,749.52/102,561.75
  6. Step 6: Final answer
    x = 235,029.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.