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Finding the Fourth Proportional to 161,882.68, 223,418.30 and 92,993.66

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Solution

The fourth proportional to 161,882.68, 223,418.30 and 92,993.66 is: 128,342.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,882.68 : 223,418.30 = 92,993.66 : x
  2. Step 2: Convert to fraction form
    161,882.68/223,418.30 = 92,993.66/x
  3. Step 3: Cross multiply
    161,882.68x = 223,418.30 × 92,993.66
  4. Step 4: Simplify right side
    161,882.68x = 20,776,485,427.98
  5. Step 5: Solve for x
    x = 20,776,485,427.98/161,882.68
  6. Step 6: Final answer
    x = 128,342.86

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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.