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Finding the Fourth Proportional to 133,838.70, 184,697.67 and 73,409.84

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Solution

The fourth proportional to 133,838.70, 184,697.67 and 73,409.84 is: 101,305.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,838.70 : 184,697.67 = 73,409.84 : x
  2. Step 2: Convert to fraction form
    133,838.70/184,697.67 = 73,409.84/x
  3. Step 3: Cross multiply
    133,838.70x = 184,697.67 × 73,409.84
  4. Step 4: Simplify right side
    133,838.70x = 13,558,625,479.58
  5. Step 5: Solve for x
    x = 13,558,625,479.58/133,838.70
  6. Step 6: Final answer
    x = 101,305.72

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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.