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Finding the Third Proportional to 71,574 and 107,433

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Solution

The third proportional to 71,574 and 107,433 is: 161,257.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,574 : 107,433 = 107,433 : x
  2. Step 2: Convert to fraction form
    71,574/107,433 = 107,433/x
  3. Step 3: Cross multiply
    71,574x = 107,433 × 107,433
  4. Step 4: Simplify right side
    71,574x = 11,541,849,489
  5. Step 5: Solve for x
    x = 11,541,849,489/71,574
  6. Step 6: Final answer
    x = 161,257.57

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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.