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Finding the Fourth Proportional to 321,283.94, 481,922.33 and 131,701.95

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Solution

The fourth proportional to 321,283.94, 481,922.33 and 131,701.95 is: 197,551.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,283.94 : 481,922.33 = 131,701.95 : x
  2. Step 2: Convert to fraction form
    321,283.94/481,922.33 = 131,701.95/x
  3. Step 3: Cross multiply
    321,283.94x = 481,922.33 × 131,701.95
  4. Step 4: Simplify right side
    321,283.94x = 63,470,109,951.03
  5. Step 5: Solve for x
    x = 63,470,109,951.03/321,283.94
  6. Step 6: Final answer
    x = 197,551.46

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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.