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Finding the Fourth Proportional to 253,921.80, 380,932.49 and 93,998.96

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Solution

The fourth proportional to 253,921.80, 380,932.49 and 93,998.96 is: 141,016.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,921.80 : 380,932.49 = 93,998.96 : x
  2. Step 2: Convert to fraction form
    253,921.80/380,932.49 = 93,998.96/x
  3. Step 3: Cross multiply
    253,921.80x = 380,932.49 × 93,998.96
  4. Step 4: Simplify right side
    253,921.80x = 35,807,258,372.55
  5. Step 5: Solve for x
    x = 35,807,258,372.55/253,921.80
  6. Step 6: Final answer
    x = 141,016.87

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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.