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Finding the Third Proportional to 194,359.50 and 421,260.75

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Solution

The third proportional to 194,359.50 and 421,260.75 is: 913,053.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,359.50 : 421,260.75 = 421,260.75 : x
  2. Step 2: Convert to fraction form
    194,359.50/421,260.75 = 421,260.75/x
  3. Step 3: Cross multiply
    194,359.50x = 421,260.75 × 421,260.75
  4. Step 4: Simplify right side
    194,359.50x = 177,460,619,490.56
  5. Step 5: Solve for x
    x = 177,460,619,490.56/194,359.50
  6. Step 6: Final answer
    x = 913,053.49

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.