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Finding the Fourth Proportional to 226,887.90, 340,252.49 and 66,921.39

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Solution

The fourth proportional to 226,887.90, 340,252.49 and 66,921.39 is: 100,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,887.90 : 340,252.49 = 66,921.39 : x
  2. Step 2: Convert to fraction form
    226,887.90/340,252.49 = 66,921.39/x
  3. Step 3: Cross multiply
    226,887.90x = 340,252.49 × 66,921.39
  4. Step 4: Simplify right side
    226,887.90x = 22,770,169,247.15
  5. Step 5: Solve for x
    x = 22,770,169,247.15/226,887.90
  6. Step 6: Final answer
    x = 100,358.68

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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.