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Finding the Third Proportional to 191,315.25 and 276,560.25

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Solution

The third proportional to 191,315.25 and 276,560.25 is: 399,788.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,315.25 : 276,560.25 = 276,560.25 : x
  2. Step 2: Convert to fraction form
    191,315.25/276,560.25 = 276,560.25/x
  3. Step 3: Cross multiply
    191,315.25x = 276,560.25 × 276,560.25
  4. Step 4: Simplify right side
    191,315.25x = 76,485,571,880.06
  5. Step 5: Solve for x
    x = 76,485,571,880.06/191,315.25
  6. Step 6: Final answer
    x = 399,788.16

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.