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Finding the Third Proportional to 138,585.38 and 193,084.31

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Solution

The third proportional to 138,585.38 and 193,084.31 is: 269,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,585.38 : 193,084.31 = 193,084.31 : x
  2. Step 2: Convert to fraction form
    138,585.38/193,084.31 = 193,084.31/x
  3. Step 3: Cross multiply
    138,585.38x = 193,084.31 × 193,084.31
  4. Step 4: Simplify right side
    138,585.38x = 37,281,551,733.60
  5. Step 5: Solve for x
    x = 37,281,551,733.60/138,585.38
  6. Step 6: Final answer
    x = 269,015.05

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.