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Finding the Fourth Proportional to 481,954.41, 722,876.54 and 126,996.21

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Solution

The fourth proportional to 481,954.41, 722,876.54 and 126,996.21 is: 190,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,954.41 : 722,876.54 = 126,996.21 : x
  2. Step 2: Convert to fraction form
    481,954.41/722,876.54 = 126,996.21/x
  3. Step 3: Cross multiply
    481,954.41x = 722,876.54 × 126,996.21
  4. Step 4: Simplify right side
    481,954.41x = 91,802,580,242.93
  5. Step 5: Solve for x
    x = 91,802,580,242.93/481,954.41
  6. Step 6: Final answer
    x = 190,479.80

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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.