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Finding the Fourth Proportional to 481,603.60, 722,621.40 and 166,286.80

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Solution

The fourth proportional to 481,603.60, 722,621.40 and 166,286.80 is: 249,504.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,603.60 : 722,621.40 = 166,286.80 : x
  2. Step 2: Convert to fraction form
    481,603.60/722,621.40 = 166,286.80/x
  3. Step 3: Cross multiply
    481,603.60x = 722,621.40 × 166,286.80
  4. Step 4: Simplify right side
    481,603.60x = 120,162,400,217.52
  5. Step 5: Solve for x
    x = 120,162,400,217.52/481,603.60
  6. Step 6: Final answer
    x = 249,504.78

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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.