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Finding the Fourth Proportional to 133,583.78, 184,362.68 and 76,995.56

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Solution

The fourth proportional to 133,583.78, 184,362.68 and 76,995.56 is: 106,263.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,583.78 : 184,362.68 = 76,995.56 : x
  2. Step 2: Convert to fraction form
    133,583.78/184,362.68 = 76,995.56/x
  3. Step 3: Cross multiply
    133,583.78x = 184,362.68 × 76,995.56
  4. Step 4: Simplify right side
    133,583.78x = 14,195,107,789.70
  5. Step 5: Solve for x
    x = 14,195,107,789.70/133,583.78
  6. Step 6: Final answer
    x = 106,263.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.