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Finding the Fourth Proportional to 66,201.33, 91,372.39 and 43,542.39

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Solution

The fourth proportional to 66,201.33, 91,372.39 and 43,542.39 is: 60,098.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,201.33 : 91,372.39 = 43,542.39 : x
  2. Step 2: Convert to fraction form
    66,201.33/91,372.39 = 43,542.39/x
  3. Step 3: Cross multiply
    66,201.33x = 91,372.39 × 43,542.39
  4. Step 4: Simplify right side
    66,201.33x = 3,978,572,474.40
  5. Step 5: Solve for x
    x = 3,978,572,474.40/66,201.33
  6. Step 6: Final answer
    x = 60,098.07

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1.5x scale

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.