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Finding the Fourth Proportional to 75,682.78, 113,524.38 and 75,573.44

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Solution

The fourth proportional to 75,682.78, 113,524.38 and 75,573.44 is: 113,360.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,682.78 : 113,524.38 = 75,573.44 : x
  2. Step 2: Convert to fraction form
    75,682.78/113,524.38 = 75,573.44/x
  3. Step 3: Cross multiply
    75,682.78x = 113,524.38 × 75,573.44
  4. Step 4: Simplify right side
    75,682.78x = 8,579,427,920.47
  5. Step 5: Solve for x
    x = 8,579,427,920.47/75,682.78
  6. Step 6: Final answer
    x = 113,360.37

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1.5x scale

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.