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Finding the Fourth Proportional to 133,785.81, 184,622.90 and 77,195.97

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Solution

The fourth proportional to 133,785.81, 184,622.90 and 77,195.97 is: 106,529.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,785.81 : 184,622.90 = 77,195.97 : x
  2. Step 2: Convert to fraction form
    133,785.81/184,622.90 = 77,195.97/x
  3. Step 3: Cross multiply
    133,785.81x = 184,622.90 × 77,195.97
  4. Step 4: Simplify right side
    133,785.81x = 14,252,143,463.73
  5. Step 5: Solve for x
    x = 14,252,143,463.73/133,785.81
  6. Step 6: Final answer
    x = 106,529.56

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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.