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Finding the Fourth Proportional to 227,485.62, 313,929.27 and 125,517.43

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Solution

The fourth proportional to 227,485.62, 313,929.27 and 125,517.43 is: 173,213.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,485.62 : 313,929.27 = 125,517.43 : x
  2. Step 2: Convert to fraction form
    227,485.62/313,929.27 = 125,517.43/x
  3. Step 3: Cross multiply
    227,485.62x = 313,929.27 × 125,517.43
  4. Step 4: Simplify right side
    227,485.62x = 39,403,594,308.82
  5. Step 5: Solve for x
    x = 39,403,594,308.82/227,485.62
  6. Step 6: Final answer
    x = 173,213.56

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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.