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Finding the Third Proportional to 108,856.13 and 168,199.88

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Solution

The third proportional to 108,856.13 and 168,199.88 is: 259,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,856.13 : 168,199.88 = 168,199.88 : x
  2. Step 2: Convert to fraction form
    108,856.13/168,199.88 = 168,199.88/x
  3. Step 3: Cross multiply
    108,856.13x = 168,199.88 × 168,199.88
  4. Step 4: Simplify right side
    108,856.13x = 28,291,197,950.02
  5. Step 5: Solve for x
    x = 28,291,197,950.02/108,856.13
  6. Step 6: Final answer
    x = 259,895.32

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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.