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Finding the Fourth Proportional to 73,138.41, 109,707.63 and 17,734.41

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Solution

The fourth proportional to 73,138.41, 109,707.63 and 17,734.41 is: 26,601.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,138.41 : 109,707.63 = 17,734.41 : x
  2. Step 2: Convert to fraction form
    73,138.41/109,707.63 = 17,734.41/x
  3. Step 3: Cross multiply
    73,138.41x = 109,707.63 × 17,734.41
  4. Step 4: Simplify right side
    73,138.41x = 1,945,600,090.55
  5. Step 5: Solve for x
    x = 1,945,600,090.55/73,138.41
  6. Step 6: Final answer
    x = 26,601.62

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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.