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Finding the Third Proportional to 98,642.81 and 217,393.88

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Solution

The third proportional to 98,642.81 and 217,393.88 is: 479,103.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,642.81 : 217,393.88 = 217,393.88 : x
  2. Step 2: Convert to fraction form
    98,642.81/217,393.88 = 217,393.88/x
  3. Step 3: Cross multiply
    98,642.81x = 217,393.88 × 217,393.88
  4. Step 4: Simplify right side
    98,642.81x = 47,260,096,887.52
  5. Step 5: Solve for x
    x = 47,260,096,887.52/98,642.81
  6. Step 6: Final answer
    x = 479,103.30

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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.