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Finding the Fourth Proportional to 321,033.48, 481,582.08 and 118,682.61

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Solution

The fourth proportional to 321,033.48, 481,582.08 and 118,682.61 is: 178,035.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,033.48 : 481,582.08 = 118,682.61 : x
  2. Step 2: Convert to fraction form
    321,033.48/481,582.08 = 118,682.61/x
  3. Step 3: Cross multiply
    321,033.48x = 481,582.08 × 118,682.61
  4. Step 4: Simplify right side
    321,033.48x = 57,155,418,183.63
  5. Step 5: Solve for x
    x = 57,155,418,183.63/321,033.48
  6. Step 6: Final answer
    x = 178,035.69

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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.