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Finding the Fourth Proportional to 72,626.47, 108,939.60 and 25,241.56

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Solution

The fourth proportional to 72,626.47, 108,939.60 and 25,241.56 is: 37,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,626.47 : 108,939.60 = 25,241.56 : x
  2. Step 2: Convert to fraction form
    72,626.47/108,939.60 = 25,241.56/x
  3. Step 3: Cross multiply
    72,626.47x = 108,939.60 × 25,241.56
  4. Step 4: Simplify right side
    72,626.47x = 2,749,805,177.43
  5. Step 5: Solve for x
    x = 2,749,805,177.43/72,626.47
  6. Step 6: Final answer
    x = 37,862.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.