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Finding the Fourth Proportional to 323,736.57, 485,587.08 and 99,096.80

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Solution

The fourth proportional to 323,736.57, 485,587.08 and 99,096.80 is: 148,639.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,736.57 : 485,587.08 = 99,096.80 : x
  2. Step 2: Convert to fraction form
    323,736.57/485,587.08 = 99,096.80/x
  3. Step 3: Cross multiply
    323,736.57x = 485,587.08 × 99,096.80
  4. Step 4: Simplify right side
    323,736.57x = 48,120,123,321.41
  5. Step 5: Solve for x
    x = 48,120,123,321.41/323,736.57
  6. Step 6: Final answer
    x = 148,639.75

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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.