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Finding the Fourth Proportional to 321,673.68, 482,353.38 and 96,991.83

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Solution

The fourth proportional to 321,673.68, 482,353.38 and 96,991.83 is: 145,440.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,673.68 : 482,353.38 = 96,991.83 : x
  2. Step 2: Convert to fraction form
    321,673.68/482,353.38 = 96,991.83/x
  3. Step 3: Cross multiply
    321,673.68x = 482,353.38 × 96,991.83
  4. Step 4: Simplify right side
    321,673.68x = 46,784,337,032.89
  5. Step 5: Solve for x
    x = 46,784,337,032.89/321,673.68
  6. Step 6: Final answer
    x = 145,440.36

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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.