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Finding the Fourth Proportional to 394,250.60, 591,311.18 and 109,960.50

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Solution

The fourth proportional to 394,250.60, 591,311.18 and 109,960.50 is: 164,922.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,250.60 : 591,311.18 = 109,960.50 : x
  2. Step 2: Convert to fraction form
    394,250.60/591,311.18 = 109,960.50/x
  3. Step 3: Cross multiply
    394,250.60x = 591,311.18 × 109,960.50
  4. Step 4: Simplify right side
    394,250.60x = 65,020,873,008.39
  5. Step 5: Solve for x
    x = 65,020,873,008.39/394,250.60
  6. Step 6: Final answer
    x = 164,922.70

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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.