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Finding the Fourth Proportional to 225,963.36, 338,953.86 and 68,191.83

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Solution

The fourth proportional to 225,963.36, 338,953.86 and 68,191.83 is: 102,290.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,963.36 : 338,953.86 = 68,191.83 : x
  2. Step 2: Convert to fraction form
    225,963.36/338,953.86 = 68,191.83/x
  3. Step 3: Cross multiply
    225,963.36x = 338,953.86 × 68,191.83
  4. Step 4: Simplify right side
    225,963.36x = 23,113,883,998.96
  5. Step 5: Solve for x
    x = 23,113,883,998.96/225,963.36
  6. Step 6: Final answer
    x = 102,290.41

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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.