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Finding the Fourth Proportional to 90,791.87, 125,241.58 and 54,484.02

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Solution

The fourth proportional to 90,791.87, 125,241.58 and 54,484.02 is: 75,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,791.87 : 125,241.58 = 54,484.02 : x
  2. Step 2: Convert to fraction form
    90,791.87/125,241.58 = 54,484.02/x
  3. Step 3: Cross multiply
    90,791.87x = 125,241.58 × 54,484.02
  4. Step 4: Simplify right side
    90,791.87x = 6,823,664,749.55
  5. Step 5: Solve for x
    x = 6,823,664,749.55/90,791.87
  6. Step 6: Final answer
    x = 75,157.22

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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.