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Finding the Fourth Proportional to 321,366.27, 481,898.32 and 118,822.43

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Solution

The fourth proportional to 321,366.27, 481,898.32 and 118,822.43 is: 178,177.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,366.27 : 481,898.32 = 118,822.43 : x
  2. Step 2: Convert to fraction form
    321,366.27/481,898.32 = 118,822.43/x
  3. Step 3: Cross multiply
    321,366.27x = 481,898.32 × 118,822.43
  4. Step 4: Simplify right side
    321,366.27x = 57,260,330,470.10
  5. Step 5: Solve for x
    x = 57,260,330,470.10/321,366.27
  6. Step 6: Final answer
    x = 178,177.79

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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.