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Finding the Fourth Proportional to 184,591.20, 276,886.80 and 91,279.20

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Solution

The fourth proportional to 184,591.20, 276,886.80 and 91,279.20 is: 136,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,591.20 : 276,886.80 = 91,279.20 : x
  2. Step 2: Convert to fraction form
    184,591.20/276,886.80 = 91,279.20/x
  3. Step 3: Cross multiply
    184,591.20x = 276,886.80 × 91,279.20
  4. Step 4: Simplify right side
    184,591.20x = 25,274,005,594.56
  5. Step 5: Solve for x
    x = 25,274,005,594.56/184,591.20
  6. Step 6: Final answer
    x = 136,918.80

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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.