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Finding the Fourth Proportional to 264,388.68, 396,532.08 and 74,847.60

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Solution

The fourth proportional to 264,388.68, 396,532.08 and 74,847.60 is: 112,256.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,388.68 : 396,532.08 = 74,847.60 : x
  2. Step 2: Convert to fraction form
    264,388.68/396,532.08 = 74,847.60/x
  3. Step 3: Cross multiply
    264,388.68x = 396,532.08 × 74,847.60
  4. Step 4: Simplify right side
    264,388.68x = 29,679,474,511.01
  5. Step 5: Solve for x
    x = 29,679,474,511.01/264,388.68
  6. Step 6: Final answer
    x = 112,256.98

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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.