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Finding the Fourth Proportional to 184,643.70, 276,965.55 and 131,939.70

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Solution

The fourth proportional to 184,643.70, 276,965.55 and 131,939.70 is: 197,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,643.70 : 276,965.55 = 131,939.70 : x
  2. Step 2: Convert to fraction form
    184,643.70/276,965.55 = 131,939.70/x
  3. Step 3: Cross multiply
    184,643.70x = 276,965.55 × 131,939.70
  4. Step 4: Simplify right side
    184,643.70x = 36,542,751,577.34
  5. Step 5: Solve for x
    x = 36,542,751,577.34/184,643.70
  6. Step 6: Final answer
    x = 197,909.55

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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.