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Finding the Fourth Proportional to 133,811.82, 184,662.85 and 73,378.87

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Solution

The fourth proportional to 133,811.82, 184,662.85 and 73,378.87 is: 101,264.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,811.82 : 184,662.85 = 73,378.87 : x
  2. Step 2: Convert to fraction form
    133,811.82/184,662.85 = 73,378.87/x
  3. Step 3: Cross multiply
    133,811.82x = 184,662.85 × 73,378.87
  4. Step 4: Simplify right side
    133,811.82x = 13,550,351,263.98
  5. Step 5: Solve for x
    x = 13,550,351,263.98/133,811.82
  6. Step 6: Final answer
    x = 101,264.23

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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.