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Finding the Fourth Proportional to 133,451.30, 184,161.20 and 73,021.30

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Solution

The fourth proportional to 133,451.30, 184,161.20 and 73,021.30 is: 100,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,451.30 : 184,161.20 = 73,021.30 : x
  2. Step 2: Convert to fraction form
    133,451.30/184,161.20 = 73,021.30/x
  3. Step 3: Cross multiply
    133,451.30x = 184,161.20 × 73,021.30
  4. Step 4: Simplify right side
    133,451.30x = 13,447,689,408.05
  5. Step 5: Solve for x
    x = 13,447,689,408.05/133,451.30
  6. Step 6: Final answer
    x = 100,768.52

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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.