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Finding the Fourth Proportional to 133,676, 184,472.88 and 79,963.28

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Solution

The fourth proportional to 133,676, 184,472.88 and 79,963.28 is: 110,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,676 : 184,472.88 = 79,963.28 : x
  2. Step 2: Convert to fraction form
    133,676/184,472.88 = 79,963.28/x
  3. Step 3: Cross multiply
    133,676x = 184,472.88 × 79,963.28
  4. Step 4: Simplify right side
    133,676x = 14,751,056,555.85
  5. Step 5: Solve for x
    x = 14,751,056,555.85/133,676
  6. Step 6: Final answer
    x = 110,349.33

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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.