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Finding the Third Proportional to 142,563.38 and 306,186.75

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Solution

The third proportional to 142,563.38 and 306,186.75 is: 657,604.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,563.38 : 306,186.75 = 306,186.75 : x
  2. Step 2: Convert to fraction form
    142,563.38/306,186.75 = 306,186.75/x
  3. Step 3: Cross multiply
    142,563.38x = 306,186.75 × 306,186.75
  4. Step 4: Simplify right side
    142,563.38x = 93,750,325,875.56
  5. Step 5: Solve for x
    x = 93,750,325,875.56/142,563.38
  6. Step 6: Final answer
    x = 657,604.56

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.