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Finding the Fourth Proportional to 226,458.70, 339,688.86 and 68,688.52

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Solution

The fourth proportional to 226,458.70, 339,688.86 and 68,688.52 is: 103,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,458.70 : 339,688.86 = 68,688.52 : x
  2. Step 2: Convert to fraction form
    226,458.70/339,688.86 = 68,688.52/x
  3. Step 3: Cross multiply
    226,458.70x = 339,688.86 × 68,688.52
  4. Step 4: Simplify right side
    226,458.70x = 23,332,725,053.89
  5. Step 5: Solve for x
    x = 23,332,725,053.89/226,458.70
  6. Step 6: Final answer
    x = 103,033.03

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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.