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Finding the Fourth Proportional to 202,765.44, 279,813.39 and 112,119.42

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Solution

The fourth proportional to 202,765.44, 279,813.39 and 112,119.42 is: 154,723.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,765.44 : 279,813.39 = 112,119.42 : x
  2. Step 2: Convert to fraction form
    202,765.44/279,813.39 = 112,119.42/x
  3. Step 3: Cross multiply
    202,765.44x = 279,813.39 × 112,119.42
  4. Step 4: Simplify right side
    202,765.44x = 31,372,514,995.03
  5. Step 5: Solve for x
    x = 31,372,514,995.03/202,765.44
  6. Step 6: Final answer
    x = 154,723.19

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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.