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Finding the Fourth Proportional to 481,238.50, 721,857.76 and 148,814.50

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Solution

The fourth proportional to 481,238.50, 721,857.76 and 148,814.50 is: 223,221.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,238.50 : 721,857.76 = 148,814.50 : x
  2. Step 2: Convert to fraction form
    481,238.50/721,857.76 = 148,814.50/x
  3. Step 3: Cross multiply
    481,238.50x = 721,857.76 × 148,814.50
  4. Step 4: Simplify right side
    481,238.50x = 107,422,901,625.52
  5. Step 5: Solve for x
    x = 107,422,901,625.52/481,238.50
  6. Step 6: Final answer
    x = 223,221.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.