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Finding the Third Proportional to 108,087.75 and 153,972.75

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Solution

The third proportional to 108,087.75 and 153,972.75 is: 219,336.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,087.75 : 153,972.75 = 153,972.75 : x
  2. Step 2: Convert to fraction form
    108,087.75/153,972.75 = 153,972.75/x
  3. Step 3: Cross multiply
    108,087.75x = 153,972.75 × 153,972.75
  4. Step 4: Simplify right side
    108,087.75x = 23,707,607,742.56
  5. Step 5: Solve for x
    x = 23,707,607,742.56/108,087.75
  6. Step 6: Final answer
    x = 219,336.68

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.