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Finding the Fourth Proportional to 133,558.69, 184,310.32 and 73,128.24

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Solution

The fourth proportional to 133,558.69, 184,310.32 and 73,128.24 is: 100,916.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,558.69 : 184,310.32 = 73,128.24 : x
  2. Step 2: Convert to fraction form
    133,558.69/184,310.32 = 73,128.24/x
  3. Step 3: Cross multiply
    133,558.69x = 184,310.32 × 73,128.24
  4. Step 4: Simplify right side
    133,558.69x = 13,478,288,028.24
  5. Step 5: Solve for x
    x = 13,478,288,028.24/133,558.69
  6. Step 6: Final answer
    x = 100,916.59

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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.