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Finding the Third Proportional to 68,783.63 and 103,869

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Solution

The third proportional to 68,783.63 and 103,869 is: 156,850.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,783.63 : 103,869 = 103,869 : x
  2. Step 2: Convert to fraction form
    68,783.63/103,869 = 103,869/x
  3. Step 3: Cross multiply
    68,783.63x = 103,869 × 103,869
  4. Step 4: Simplify right side
    68,783.63x = 10,788,769,161
  5. Step 5: Solve for x
    x = 10,788,769,161/68,783.63
  6. Step 6: Final answer
    x = 156,850.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.