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Finding the Third Proportional to 168,309.28 and 368,289.56

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Solution

The third proportional to 168,309.28 and 368,289.56 is: 805,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,309.28 : 368,289.56 = 368,289.56 : x
  2. Step 2: Convert to fraction form
    168,309.28/368,289.56 = 368,289.56/x
  3. Step 3: Cross multiply
    168,309.28x = 368,289.56 × 368,289.56
  4. Step 4: Simplify right side
    168,309.28x = 135,637,201,846.44
  5. Step 5: Solve for x
    x = 135,637,201,846.44/168,309.28
  6. Step 6: Final answer
    x = 805,880.70

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.