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Finding the Fourth Proportional to 394,249.60, 591,121.76 and 166,483.52

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Solution

The fourth proportional to 394,249.60, 591,121.76 and 166,483.52 is: 249,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,249.60 : 591,121.76 = 166,483.52 : x
  2. Step 2: Convert to fraction form
    394,249.60/591,121.76 = 166,483.52/x
  3. Step 3: Cross multiply
    394,249.60x = 591,121.76 × 166,483.52
  4. Step 4: Simplify right side
    394,249.60x = 98,412,032,199.56
  5. Step 5: Solve for x
    x = 98,412,032,199.56/394,249.60
  6. Step 6: Final answer
    x = 249,618.59

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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.