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Finding the Third Proportional to 69,441 and 103,705

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Solution

The third proportional to 69,441 and 103,705 is: 154,875.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,441 : 103,705 = 103,705 : x
  2. Step 2: Convert to fraction form
    69,441/103,705 = 103,705/x
  3. Step 3: Cross multiply
    69,441x = 103,705 × 103,705
  4. Step 4: Simplify right side
    69,441x = 10,754,727,025
  5. Step 5: Solve for x
    x = 10,754,727,025/69,441
  6. Step 6: Final answer
    x = 154,875.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.