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Finding the Fourth Proportional to 73,513, 110,270.58 and 18,109

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Solution

The fourth proportional to 73,513, 110,270.58 and 18,109 is: 27,163.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,513 : 110,270.58 = 18,109 : x
  2. Step 2: Convert to fraction form
    73,513/110,270.58 = 18,109/x
  3. Step 3: Cross multiply
    73,513x = 110,270.58 × 18,109
  4. Step 4: Simplify right side
    73,513x = 1,996,889,933.22
  5. Step 5: Solve for x
    x = 1,996,889,933.22/73,513
  6. Step 6: Final answer
    x = 27,163.77

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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.