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Finding the Fourth Proportional to 225,958.36, 338,946.38 and 68,186.84

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Solution

The fourth proportional to 225,958.36, 338,946.38 and 68,186.84 is: 102,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,958.36 : 338,946.38 = 68,186.84 : x
  2. Step 2: Convert to fraction form
    225,958.36/338,946.38 = 68,186.84/x
  3. Step 3: Cross multiply
    225,958.36x = 338,946.38 × 68,186.84
  4. Step 4: Simplify right side
    225,958.36x = 23,111,682,581.64
  5. Step 5: Solve for x
    x = 23,111,682,581.64/225,958.36
  6. Step 6: Final answer
    x = 102,282.93

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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.