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Finding the Fourth Proportional to 264,972.70, 396,940.65 and 159,478.30

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Solution

The fourth proportional to 264,972.70, 396,940.65 and 159,478.30 is: 238,905.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,972.70 : 396,940.65 = 159,478.30 : x
  2. Step 2: Convert to fraction form
    264,972.70/396,940.65 = 159,478.30/x
  3. Step 3: Cross multiply
    264,972.70x = 396,940.65 × 159,478.30
  4. Step 4: Simplify right side
    264,972.70x = 63,303,420,062.90
  5. Step 5: Solve for x
    x = 63,303,420,062.90/264,972.70
  6. Step 6: Final answer
    x = 238,905.44

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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.