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Finding the Third Proportional to 63,772.31 and 139,201.03

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Solution

The third proportional to 63,772.31 and 139,201.03 is: 303,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,772.31 : 139,201.03 = 139,201.03 : x
  2. Step 2: Convert to fraction form
    63,772.31/139,201.03 = 139,201.03/x
  3. Step 3: Cross multiply
    63,772.31x = 139,201.03 × 139,201.03
  4. Step 4: Simplify right side
    63,772.31x = 19,376,927,101.06
  5. Step 5: Solve for x
    x = 19,376,927,101.06/63,772.31
  6. Step 6: Final answer
    x = 303,845.45

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.