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Finding the Third Proportional to 79,386.19 and 171,236.25

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Solution

The third proportional to 79,386.19 and 171,236.25 is: 369,357.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,386.19 : 171,236.25 = 171,236.25 : x
  2. Step 2: Convert to fraction form
    79,386.19/171,236.25 = 171,236.25/x
  3. Step 3: Cross multiply
    79,386.19x = 171,236.25 × 171,236.25
  4. Step 4: Simplify right side
    79,386.19x = 29,321,853,314.06
  5. Step 5: Solve for x
    x = 29,321,853,314.06/79,386.19
  6. Step 6: Final answer
    x = 369,357.12

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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.