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Finding the Third Proportional to 72,285.75 and 107,777.25

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Solution

The third proportional to 72,285.75 and 107,777.25 is: 160,694.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,285.75 : 107,777.25 = 107,777.25 : x
  2. Step 2: Convert to fraction form
    72,285.75/107,777.25 = 107,777.25/x
  3. Step 3: Cross multiply
    72,285.75x = 107,777.25 × 107,777.25
  4. Step 4: Simplify right side
    72,285.75x = 11,615,935,617.56
  5. Step 5: Solve for x
    x = 11,615,935,617.56/72,285.75
  6. Step 6: Final answer
    x = 160,694.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.