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Finding the Fourth Proportional to 264,938.50, 397,310.55 and 87,392.98

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Solution

The fourth proportional to 264,938.50, 397,310.55 and 87,392.98 is: 131,057.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,938.50 : 397,310.55 = 87,392.98 : x
  2. Step 2: Convert to fraction form
    264,938.50/397,310.55 = 87,392.98/x
  3. Step 3: Cross multiply
    264,938.50x = 397,310.55 × 87,392.98
  4. Step 4: Simplify right side
    264,938.50x = 34,722,152,949.94
  5. Step 5: Solve for x
    x = 34,722,152,949.94/264,938.50
  6. Step 6: Final answer
    x = 131,057.41

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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.