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Finding the Fourth Proportional to 66,542.16, 91,828.20 and 36,734.16

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Solution

The fourth proportional to 66,542.16, 91,828.20 and 36,734.16 is: 50,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,542.16 : 91,828.20 = 36,734.16 : x
  2. Step 2: Convert to fraction form
    66,542.16/91,828.20 = 36,734.16/x
  3. Step 3: Cross multiply
    66,542.16x = 91,828.20 × 36,734.16
  4. Step 4: Simplify right side
    66,542.16x = 3,373,231,791.31
  5. Step 5: Solve for x
    x = 3,373,231,791.31/66,542.16
  6. Step 6: Final answer
    x = 50,693.15

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