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Finding the Third Proportional to 108,607.78 and 168,165.84

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Solution

The third proportional to 108,607.78 and 168,165.84 is: 260,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,607.78 : 168,165.84 = 168,165.84 : x
  2. Step 2: Convert to fraction form
    108,607.78/168,165.84 = 168,165.84/x
  3. Step 3: Cross multiply
    108,607.78x = 168,165.84 × 168,165.84
  4. Step 4: Simplify right side
    108,607.78x = 28,279,751,004.15
  5. Step 5: Solve for x
    x = 28,279,751,004.15/108,607.78
  6. Step 6: Final answer
    x = 260,384.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.