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Finding the Fourth Proportional to 481,504.14, 721,862.12 and 181,814.66

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Solution

The fourth proportional to 481,504.14, 721,862.12 and 181,814.66 is: 272,573.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,504.14 : 721,862.12 = 181,814.66 : x
  2. Step 2: Convert to fraction form
    481,504.14/721,862.12 = 181,814.66/x
  3. Step 3: Cross multiply
    481,504.14x = 721,862.12 × 181,814.66
  4. Step 4: Simplify right side
    481,504.14x = 131,245,115,914.68
  5. Step 5: Solve for x
    x = 131,245,115,914.68/481,504.14
  6. Step 6: Final answer
    x = 272,573.18

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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.