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Finding the Fourth Proportional to 133,468.87, 184,168.83 and 79,742.47

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Solution

The fourth proportional to 133,468.87, 184,168.83 and 79,742.47 is: 110,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,468.87 : 184,168.83 = 79,742.47 : x
  2. Step 2: Convert to fraction form
    133,468.87/184,168.83 = 79,742.47/x
  3. Step 3: Cross multiply
    133,468.87x = 184,168.83 × 79,742.47
  4. Step 4: Simplify right side
    133,468.87x = 14,686,077,401.21
  5. Step 5: Solve for x
    x = 14,686,077,401.21/133,468.87
  6. Step 6: Final answer
    x = 110,033.73

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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.