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Finding the Third Proportional to 75,387 and 113,089.50

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Solution

The third proportional to 75,387 and 113,089.50 is: 169,647.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,387 : 113,089.50 = 113,089.50 : x
  2. Step 2: Convert to fraction form
    75,387/113,089.50 = 113,089.50/x
  3. Step 3: Cross multiply
    75,387x = 113,089.50 × 113,089.50
  4. Step 4: Simplify right side
    75,387x = 12,789,235,010.25
  5. Step 5: Solve for x
    x = 12,789,235,010.25/75,387
  6. Step 6: Final answer
    x = 169,647.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.