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Finding the Fourth Proportional to 481,779.60, 722,499.30 and 166,163.10

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Solution

The fourth proportional to 481,779.60, 722,499.30 and 166,163.10 is: 249,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,779.60 : 722,499.30 = 166,163.10 : x
  2. Step 2: Convert to fraction form
    481,779.60/722,499.30 = 166,163.10/x
  3. Step 3: Cross multiply
    481,779.60x = 722,499.30 × 166,163.10
  4. Step 4: Simplify right side
    481,779.60x = 120,052,723,435.83
  5. Step 5: Solve for x
    x = 120,052,723,435.83/481,779.60
  6. Step 6: Final answer
    x = 249,185.98

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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.