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Finding the Third Proportional to 186,939 and 397,246.50

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Solution

The third proportional to 186,939 and 397,246.50 is: 844,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,939 : 397,246.50 = 397,246.50 : x
  2. Step 2: Convert to fraction form
    186,939/397,246.50 = 397,246.50/x
  3. Step 3: Cross multiply
    186,939x = 397,246.50 × 397,246.50
  4. Step 4: Simplify right side
    186,939x = 157,804,781,762.25
  5. Step 5: Solve for x
    x = 157,804,781,762.25/186,939
  6. Step 6: Final answer
    x = 844,151.20

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.