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Finding the Third Proportional to 75,089.50 and 104,979.75

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Solution

The third proportional to 75,089.50 and 104,979.75 is: 146,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,089.50 : 104,979.75 = 104,979.75 : x
  2. Step 2: Convert to fraction form
    75,089.50/104,979.75 = 104,979.75/x
  3. Step 3: Cross multiply
    75,089.50x = 104,979.75 × 104,979.75
  4. Step 4: Simplify right side
    75,089.50x = 11,020,747,910.06
  5. Step 5: Solve for x
    x = 11,020,747,910.06/75,089.50
  6. Step 6: Final answer
    x = 146,768.16

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.