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Finding the Third Proportional to 64,400.06 and 138,327.75

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Solution

The third proportional to 64,400.06 and 138,327.75 is: 297,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,400.06 : 138,327.75 = 138,327.75 : x
  2. Step 2: Convert to fraction form
    64,400.06/138,327.75 = 138,327.75/x
  3. Step 3: Cross multiply
    64,400.06x = 138,327.75 × 138,327.75
  4. Step 4: Simplify right side
    64,400.06x = 19,134,566,420.06
  5. Step 5: Solve for x
    x = 19,134,566,420.06/64,400.06
  6. Step 6: Final answer
    x = 297,120.31

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.