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Finding the Fourth Proportional to 65,923.30, 90,972.21 and 37,244.31

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Solution

The fourth proportional to 65,923.30, 90,972.21 and 37,244.31 is: 51,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,923.30 : 90,972.21 = 37,244.31 : x
  2. Step 2: Convert to fraction form
    65,923.30/90,972.21 = 37,244.31/x
  3. Step 3: Cross multiply
    65,923.30x = 90,972.21 × 37,244.31
  4. Step 4: Simplify right side
    65,923.30x = 3,388,197,190.63
  5. Step 5: Solve for x
    x = 3,388,197,190.63/65,923.30
  6. Step 6: Final answer
    x = 51,396.05

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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.