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Finding the Fourth Proportional to 63,942.24, 95,945.80 and 43,122

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Solution

The fourth proportional to 63,942.24, 95,945.80 and 43,122 is: 64,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,942.24 : 95,945.80 = 43,122 : x
  2. Step 2: Convert to fraction form
    63,942.24/95,945.80 = 43,122/x
  3. Step 3: Cross multiply
    63,942.24x = 95,945.80 × 43,122
  4. Step 4: Simplify right side
    63,942.24x = 4,137,374,787.60
  5. Step 5: Solve for x
    x = 4,137,374,787.60/63,942.24
  6. Step 6: Final answer
    x = 64,704.88

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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.