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Finding the Third Proportional to 75,354.75 and 102,343.50

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Solution

The third proportional to 75,354.75 and 102,343.50 is: 138,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,354.75 : 102,343.50 = 102,343.50 : x
  2. Step 2: Convert to fraction form
    75,354.75/102,343.50 = 102,343.50/x
  3. Step 3: Cross multiply
    75,354.75x = 102,343.50 × 102,343.50
  4. Step 4: Simplify right side
    75,354.75x = 10,474,191,992.25
  5. Step 5: Solve for x
    x = 10,474,191,992.25/75,354.75
  6. Step 6: Final answer
    x = 138,998.43

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.