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Finding the Fourth Proportional to 394,011.59, 590,958.59 and 109,672.43

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Solution

The fourth proportional to 394,011.59, 590,958.59 and 109,672.43 is: 164,492.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,011.59 : 590,958.59 = 109,672.43 : x
  2. Step 2: Convert to fraction form
    394,011.59/590,958.59 = 109,672.43/x
  3. Step 3: Cross multiply
    394,011.59x = 590,958.59 × 109,672.43
  4. Step 4: Simplify right side
    394,011.59x = 64,811,861,914.06
  5. Step 5: Solve for x
    x = 64,811,861,914.06/394,011.59
  6. Step 6: Final answer
    x = 164,492.27

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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.