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Finding the Third Proportional to 67,918.50 and 149,242.50

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Solution

The third proportional to 67,918.50 and 149,242.50 is: 327,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,918.50 : 149,242.50 = 149,242.50 : x
  2. Step 2: Convert to fraction form
    67,918.50/149,242.50 = 149,242.50/x
  3. Step 3: Cross multiply
    67,918.50x = 149,242.50 × 149,242.50
  4. Step 4: Simplify right side
    67,918.50x = 22,273,323,806.25
  5. Step 5: Solve for x
    x = 22,273,323,806.25/67,918.50
  6. Step 6: Final answer
    x = 327,941.93

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.