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Finding the Fourth Proportional to 68,399.85, 102,755.46 and 49,482.83

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Solution

The fourth proportional to 68,399.85, 102,755.46 and 49,482.83 is: 74,336.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,399.85 : 102,755.46 = 49,482.83 : x
  2. Step 2: Convert to fraction form
    68,399.85/102,755.46 = 49,482.83/x
  3. Step 3: Cross multiply
    68,399.85x = 102,755.46 × 49,482.83
  4. Step 4: Simplify right side
    68,399.85x = 5,084,631,144.31
  5. Step 5: Solve for x
    x = 5,084,631,144.31/68,399.85
  6. Step 6: Final answer
    x = 74,336.88

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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.