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Finding the Third Proportional to 173,117.25 and 258,983.75

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Solution

The third proportional to 173,117.25 and 258,983.75 is: 387,440.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,117.25 : 258,983.75 = 258,983.75 : x
  2. Step 2: Convert to fraction form
    173,117.25/258,983.75 = 258,983.75/x
  3. Step 3: Cross multiply
    173,117.25x = 258,983.75 × 258,983.75
  4. Step 4: Simplify right side
    173,117.25x = 67,072,582,764.06
  5. Step 5: Solve for x
    x = 67,072,582,764.06/173,117.25
  6. Step 6: Final answer
    x = 387,440.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.