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Finding the Third Proportional to 74,909.81 and 160,481.25

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Solution

The third proportional to 74,909.81 and 160,481.25 is: 343,803.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,909.81 : 160,481.25 = 160,481.25 : x
  2. Step 2: Convert to fraction form
    74,909.81/160,481.25 = 160,481.25/x
  3. Step 3: Cross multiply
    74,909.81x = 160,481.25 × 160,481.25
  4. Step 4: Simplify right side
    74,909.81x = 25,754,231,601.56
  5. Step 5: Solve for x
    x = 25,754,231,601.56/74,909.81
  6. Step 6: Final answer
    x = 343,803.18

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.