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Finding the Fourth Proportional to 184,517.80, 276,906.30 and 79,412.20

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Solution

The fourth proportional to 184,517.80, 276,906.30 and 79,412.20 is: 119,174.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,517.80 : 276,906.30 = 79,412.20 : x
  2. Step 2: Convert to fraction form
    184,517.80/276,906.30 = 79,412.20/x
  3. Step 3: Cross multiply
    184,517.80x = 276,906.30 × 79,412.20
  4. Step 4: Simplify right side
    184,517.80x = 21,989,738,476.86
  5. Step 5: Solve for x
    x = 21,989,738,476.86/184,517.80
  6. Step 6: Final answer
    x = 119,174.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.