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Finding the Fourth Proportional to 68,704.85, 94,765.26 and 48,330.11

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Solution

The fourth proportional to 68,704.85, 94,765.26 and 48,330.11 is: 66,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,704.85 : 94,765.26 = 48,330.11 : x
  2. Step 2: Convert to fraction form
    68,704.85/94,765.26 = 48,330.11/x
  3. Step 3: Cross multiply
    68,704.85x = 94,765.26 × 48,330.11
  4. Step 4: Simplify right side
    68,704.85x = 4,580,015,439.98
  5. Step 5: Solve for x
    x = 4,580,015,439.98/68,704.85
  6. Step 6: Final answer
    x = 66,662.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.