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Finding the Fourth Proportional to 109,773.20, 164,659.80 and 26,667.20

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Solution

The fourth proportional to 109,773.20, 164,659.80 and 26,667.20 is: 40,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,773.20 : 164,659.80 = 26,667.20 : x
  2. Step 2: Convert to fraction form
    109,773.20/164,659.80 = 26,667.20/x
  3. Step 3: Cross multiply
    109,773.20x = 164,659.80 × 26,667.20
  4. Step 4: Simplify right side
    109,773.20x = 4,391,015,818.56
  5. Step 5: Solve for x
    x = 4,391,015,818.56/109,773.20
  6. Step 6: Final answer
    x = 40,000.80

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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.