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Finding the Third Proportional to 154,955.25 and 339,394.50

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Solution

The third proportional to 154,955.25 and 339,394.50 is: 743,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,955.25 : 339,394.50 = 339,394.50 : x
  2. Step 2: Convert to fraction form
    154,955.25/339,394.50 = 339,394.50/x
  3. Step 3: Cross multiply
    154,955.25x = 339,394.50 × 339,394.50
  4. Step 4: Simplify right side
    154,955.25x = 115,188,626,630.25
  5. Step 5: Solve for x
    x = 115,188,626,630.25/154,955.25
  6. Step 6: Final answer
    x = 743,367.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.