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Finding the Fourth Proportional to 481,780.88, 722,720.52 and 166,236.87

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Solution

The fourth proportional to 481,780.88, 722,720.52 and 166,236.87 is: 249,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,780.88 : 722,720.52 = 166,236.87 : x
  2. Step 2: Convert to fraction form
    481,780.88/722,720.52 = 166,236.87/x
  3. Step 3: Cross multiply
    481,780.88x = 722,720.52 × 166,236.87
  4. Step 4: Simplify right side
    481,780.88x = 120,142,797,129.57
  5. Step 5: Solve for x
    x = 120,142,797,129.57/481,780.88
  6. Step 6: Final answer
    x = 249,372.28

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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.