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Finding the Third Proportional to 72,221.63 and 104,028.75

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Solution

The third proportional to 72,221.63 and 104,028.75 is: 149,844.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,221.63 : 104,028.75 = 104,028.75 : x
  2. Step 2: Convert to fraction form
    72,221.63/104,028.75 = 104,028.75/x
  3. Step 3: Cross multiply
    72,221.63x = 104,028.75 × 104,028.75
  4. Step 4: Simplify right side
    72,221.63x = 10,821,980,826.56
  5. Step 5: Solve for x
    x = 10,821,980,826.56/72,221.63
  6. Step 6: Final answer
    x = 149,844.05

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.