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Finding the Fourth Proportional to 246,563.72, 340,016.16 and 149,781.68

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Solution

The fourth proportional to 246,563.72, 340,016.16 and 149,781.68 is: 206,551.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,563.72 : 340,016.16 = 149,781.68 : x
  2. Step 2: Convert to fraction form
    246,563.72/340,016.16 = 149,781.68/x
  3. Step 3: Cross multiply
    246,563.72x = 340,016.16 × 149,781.68
  4. Step 4: Simplify right side
    246,563.72x = 50,928,191,671.95
  5. Step 5: Solve for x
    x = 50,928,191,671.95/246,563.72
  6. Step 6: Final answer
    x = 206,551.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.