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Finding the Fourth Proportional to 268,425.66, 402,704.24 and 133,553.37

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Solution

The fourth proportional to 268,425.66, 402,704.24 and 133,553.37 is: 200,362.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,425.66 : 402,704.24 = 133,553.37 : x
  2. Step 2: Convert to fraction form
    268,425.66/402,704.24 = 133,553.37/x
  3. Step 3: Cross multiply
    268,425.66x = 402,704.24 × 133,553.37
  4. Step 4: Simplify right side
    268,425.66x = 53,782,508,365.29
  5. Step 5: Solve for x
    x = 53,782,508,365.29/268,425.66
  6. Step 6: Final answer
    x = 200,362.77

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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.