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Finding the Fourth Proportional to 323,836.67, 485,787.41 and 99,194.51

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Solution

The fourth proportional to 323,836.67, 485,787.41 and 99,194.51 is: 148,801.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,836.67 : 485,787.41 = 99,194.51 : x
  2. Step 2: Convert to fraction form
    323,836.67/485,787.41 = 99,194.51/x
  3. Step 3: Cross multiply
    323,836.67x = 485,787.41 × 99,194.51
  4. Step 4: Simplify right side
    323,836.67x = 48,187,441,174.21
  5. Step 5: Solve for x
    x = 48,187,441,174.21/323,836.67
  6. Step 6: Final answer
    x = 148,801.68

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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.