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Finding the Fourth Proportional to 226,485.20, 339,728.60 and 68,714.96

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Solution

The fourth proportional to 226,485.20, 339,728.60 and 68,714.96 is: 103,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,485.20 : 339,728.60 = 68,714.96 : x
  2. Step 2: Convert to fraction form
    226,485.20/339,728.60 = 68,714.96/x
  3. Step 3: Cross multiply
    226,485.20x = 339,728.60 × 68,714.96
  4. Step 4: Simplify right side
    226,485.20x = 23,344,437,159.86
  5. Step 5: Solve for x
    x = 23,344,437,159.86/226,485.20
  6. Step 6: Final answer
    x = 103,072.68

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