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Finding the Fourth Proportional to 481,604.75, 722,349.61 and 126,646.41

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Solution

The fourth proportional to 481,604.75, 722,349.61 and 126,646.41 is: 189,954.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,604.75 : 722,349.61 = 126,646.41 : x
  2. Step 2: Convert to fraction form
    481,604.75/722,349.61 = 126,646.41/x
  3. Step 3: Cross multiply
    481,604.75x = 722,349.61 × 126,646.41
  4. Step 4: Simplify right side
    481,604.75x = 91,482,984,554.78
  5. Step 5: Solve for x
    x = 91,482,984,554.78/481,604.75
  6. Step 6: Final answer
    x = 189,954.49

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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.