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Finding the Fourth Proportional to 227,062.58, 340,243.47 and 143,781.62

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Solution

The fourth proportional to 227,062.58, 340,243.47 and 143,781.62 is: 215,450.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,062.58 : 340,243.47 = 143,781.62 : x
  2. Step 2: Convert to fraction form
    227,062.58/340,243.47 = 143,781.62/x
  3. Step 3: Cross multiply
    227,062.58x = 340,243.47 × 143,781.62
  4. Step 4: Simplify right side
    227,062.58x = 48,920,757,311.02
  5. Step 5: Solve for x
    x = 48,920,757,311.02/227,062.58
  6. Step 6: Final answer
    x = 215,450.55

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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.