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Finding the Fourth Proportional to 75,056, 103,579.22 and 45,249.92

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Solution

The fourth proportional to 75,056, 103,579.22 and 45,249.92 is: 62,446.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,056 : 103,579.22 = 45,249.92 : x
  2. Step 2: Convert to fraction form
    75,056/103,579.22 = 45,249.92/x
  3. Step 3: Cross multiply
    75,056x = 103,579.22 × 45,249.92
  4. Step 4: Simplify right side
    75,056x = 4,686,951,418.66
  5. Step 5: Solve for x
    x = 4,686,951,418.66/75,056
  6. Step 6: Final answer
    x = 62,446.06

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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.