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Finding the Fourth Proportional to 85,963.86, 118,629.81 and 48,238.02

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Solution

The fourth proportional to 85,963.86, 118,629.81 and 48,238.02 is: 66,568.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,963.86 : 118,629.81 = 48,238.02 : x
  2. Step 2: Convert to fraction form
    85,963.86/118,629.81 = 48,238.02/x
  3. Step 3: Cross multiply
    85,963.86x = 118,629.81 × 48,238.02
  4. Step 4: Simplify right side
    85,963.86x = 5,722,467,147.38
  5. Step 5: Solve for x
    x = 5,722,467,147.38/85,963.86
  6. Step 6: Final answer
    x = 66,568.29

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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.