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Finding the Third Proportional to 86,378 and 186,903

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Solution

The third proportional to 86,378 and 186,903 is: 404,417.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,378 : 186,903 = 186,903 : x
  2. Step 2: Convert to fraction form
    86,378/186,903 = 186,903/x
  3. Step 3: Cross multiply
    86,378x = 186,903 × 186,903
  4. Step 4: Simplify right side
    86,378x = 34,932,731,409
  5. Step 5: Solve for x
    x = 34,932,731,409/86,378
  6. Step 6: Final answer
    x = 404,417.00

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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.