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Finding the Fourth Proportional to 226,665.76, 339,687.60 and 143,410.72

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Solution

The fourth proportional to 226,665.76, 339,687.60 and 143,410.72 is: 214,919.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,665.76 : 339,687.60 = 143,410.72 : x
  2. Step 2: Convert to fraction form
    226,665.76/339,687.60 = 143,410.72/x
  3. Step 3: Cross multiply
    226,665.76x = 339,687.60 × 143,410.72
  4. Step 4: Simplify right side
    226,665.76x = 48,714,843,291.07
  5. Step 5: Solve for x
    x = 48,714,843,291.07/226,665.76
  6. Step 6: Final answer
    x = 214,919.29

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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.