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Finding the Fourth Proportional to 273,620.40, 409,739.40 and 179,617.20

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Solution

The fourth proportional to 273,620.40, 409,739.40 and 179,617.20 is: 268,972.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,620.40 : 409,739.40 = 179,617.20 : x
  2. Step 2: Convert to fraction form
    273,620.40/409,739.40 = 179,617.20/x
  3. Step 3: Cross multiply
    273,620.40x = 409,739.40 × 179,617.20
  4. Step 4: Simplify right side
    273,620.40x = 73,596,243,757.68
  5. Step 5: Solve for x
    x = 73,596,243,757.68/273,620.40
  6. Step 6: Final answer
    x = 268,972.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.