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Finding the Third Proportional to 103,666 and 149,838

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Solution

The third proportional to 103,666 and 149,838 is: 216,574.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,666 : 149,838 = 149,838 : x
  2. Step 2: Convert to fraction form
    103,666/149,838 = 149,838/x
  3. Step 3: Cross multiply
    103,666x = 149,838 × 149,838
  4. Step 4: Simplify right side
    103,666x = 22,451,426,244
  5. Step 5: Solve for x
    x = 22,451,426,244/103,666
  6. Step 6: Final answer
    x = 216,574.64

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.