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Finding the Fourth Proportional to 394,900.60, 591,814.06 and 167,006.76

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Solution

The fourth proportional to 394,900.60, 591,814.06 and 167,006.76 is: 250,283.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,900.60 : 591,814.06 = 167,006.76 : x
  2. Step 2: Convert to fraction form
    394,900.60/591,814.06 = 167,006.76/x
  3. Step 3: Cross multiply
    394,900.60x = 591,814.06 × 167,006.76
  4. Step 4: Simplify right side
    394,900.60x = 98,836,948,683.05
  5. Step 5: Solve for x
    x = 98,836,948,683.05/394,900.60
  6. Step 6: Final answer
    x = 250,283.11

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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.