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Finding the Fourth Proportional to 394,252.60, 591,314.20 and 109,962.48

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Solution

The fourth proportional to 394,252.60, 591,314.20 and 109,962.48 is: 164,925.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,252.60 : 591,314.20 = 109,962.48 : x
  2. Step 2: Convert to fraction form
    394,252.60/591,314.20 = 109,962.48/x
  3. Step 3: Cross multiply
    394,252.60x = 591,314.20 × 109,962.48
  4. Step 4: Simplify right side
    394,252.60x = 65,022,375,891.22
  5. Step 5: Solve for x
    x = 65,022,375,891.22/394,252.60
  6. Step 6: Final answer
    x = 164,925.67

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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.