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Finding the Fourth Proportional to 133,511.53, 184,245.78 and 73,081.63

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Solution

The fourth proportional to 133,511.53, 184,245.78 and 73,081.63 is: 100,852.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,511.53 : 184,245.78 = 73,081.63 : x
  2. Step 2: Convert to fraction form
    133,511.53/184,245.78 = 73,081.63/x
  3. Step 3: Cross multiply
    133,511.53x = 184,245.78 × 73,081.63
  4. Step 4: Simplify right side
    133,511.53x = 13,464,981,923.02
  5. Step 5: Solve for x
    x = 13,464,981,923.02/133,511.53
  6. Step 6: Final answer
    x = 100,852.58

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1.5x scale

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.