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Finding the Fourth Proportional to 226,364.64, 339,694.38 and 86,124.48

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Solution

The fourth proportional to 226,364.64, 339,694.38 and 86,124.48 is: 129,242.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,364.64 : 339,694.38 = 86,124.48 : x
  2. Step 2: Convert to fraction form
    226,364.64/339,694.38 = 86,124.48/x
  3. Step 3: Cross multiply
    226,364.64x = 339,694.38 × 86,124.48
  4. Step 4: Simplify right side
    226,364.64x = 29,256,001,836.42
  5. Step 5: Solve for x
    x = 29,256,001,836.42/226,364.64
  6. Step 6: Final answer
    x = 129,242.81

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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.