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Finding the Third Proportional to 108,839.81 and 168,112.13

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Solution

The third proportional to 108,839.81 and 168,112.13 is: 259,663.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,839.81 : 168,112.13 = 168,112.13 : x
  2. Step 2: Convert to fraction form
    108,839.81/168,112.13 = 168,112.13/x
  3. Step 3: Cross multiply
    108,839.81x = 168,112.13 × 168,112.13
  4. Step 4: Simplify right side
    108,839.81x = 28,261,686,572.02
  5. Step 5: Solve for x
    x = 28,261,686,572.02/108,839.81
  6. Step 6: Final answer
    x = 259,663.13

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.