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Finding the Fourth Proportional to 68,546.89, 102,850.98 and 43,580.26

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Solution

The fourth proportional to 68,546.89, 102,850.98 and 43,580.26 is: 65,389.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,546.89 : 102,850.98 = 43,580.26 : x
  2. Step 2: Convert to fraction form
    68,546.89/102,850.98 = 43,580.26/x
  3. Step 3: Cross multiply
    68,546.89x = 102,850.98 × 43,580.26
  4. Step 4: Simplify right side
    68,546.89x = 4,482,271,717.50
  5. Step 5: Solve for x
    x = 4,482,271,717.50/68,546.89
  6. Step 6: Final answer
    x = 65,389.87

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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.