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Finding the Fourth Proportional to 71,947.99, 107,860.44 and 27,606.56

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Solution

The fourth proportional to 71,947.99, 107,860.44 and 27,606.56 is: 41,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,947.99 : 107,860.44 = 27,606.56 : x
  2. Step 2: Convert to fraction form
    71,947.99/107,860.44 = 27,606.56/x
  3. Step 3: Cross multiply
    71,947.99x = 107,860.44 × 27,606.56
  4. Step 4: Simplify right side
    71,947.99x = 2,977,655,978.14
  5. Step 5: Solve for x
    x = 2,977,655,978.14/71,947.99
  6. Step 6: Final answer
    x = 41,386.23

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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.