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Finding the Third Proportional to 101,921 and 149,886

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Solution

The third proportional to 101,921 and 149,886 is: 220,423.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,921 : 149,886 = 149,886 : x
  2. Step 2: Convert to fraction form
    101,921/149,886 = 149,886/x
  3. Step 3: Cross multiply
    101,921x = 149,886 × 149,886
  4. Step 4: Simplify right side
    101,921x = 22,465,812,996
  5. Step 5: Solve for x
    x = 22,465,812,996/101,921
  6. Step 6: Final answer
    x = 220,423.79

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.