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Finding the Fourth Proportional to 133,709.53, 184,520.57 and 73,278.85

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Solution

The fourth proportional to 133,709.53, 184,520.57 and 73,278.85 is: 101,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,709.53 : 184,520.57 = 73,278.85 : x
  2. Step 2: Convert to fraction form
    133,709.53/184,520.57 = 73,278.85/x
  3. Step 3: Cross multiply
    133,709.53x = 184,520.57 × 73,278.85
  4. Step 4: Simplify right side
    133,709.53x = 13,521,454,343.25
  5. Step 5: Solve for x
    x = 13,521,454,343.25/133,709.53
  6. Step 6: Final answer
    x = 101,125.59

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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.