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Finding the Third Proportional to 74,149.50 and 159,963

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Solution

The third proportional to 74,149.50 and 159,963 is: 345,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,149.50 : 159,963 = 159,963 : x
  2. Step 2: Convert to fraction form
    74,149.50/159,963 = 159,963/x
  3. Step 3: Cross multiply
    74,149.50x = 159,963 × 159,963
  4. Step 4: Simplify right side
    74,149.50x = 25,588,161,369
  5. Step 5: Solve for x
    x = 25,588,161,369/74,149.50
  6. Step 6: Final answer
    x = 345,088.79

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.