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Finding the Fourth Proportional to 133,761.88, 184,555.02 and 79,999.48

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Solution

The fourth proportional to 133,761.88, 184,555.02 and 79,999.48 is: 110,377.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,761.88 : 184,555.02 = 79,999.48 : x
  2. Step 2: Convert to fraction form
    133,761.88/184,555.02 = 79,999.48/x
  3. Step 3: Cross multiply
    133,761.88x = 184,555.02 × 79,999.48
  4. Step 4: Simplify right side
    133,761.88x = 14,764,305,631.39
  5. Step 5: Solve for x
    x = 14,764,305,631.39/133,761.88
  6. Step 6: Final answer
    x = 110,377.53

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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.