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Finding the Fourth Proportional to 75,963.44, 113,923.20 and 29,205.20

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Solution

The fourth proportional to 75,963.44, 113,923.20 and 29,205.20 is: 43,799.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,963.44 : 113,923.20 = 29,205.20 : x
  2. Step 2: Convert to fraction form
    75,963.44/113,923.20 = 29,205.20/x
  3. Step 3: Cross multiply
    75,963.44x = 113,923.20 × 29,205.20
  4. Step 4: Simplify right side
    75,963.44x = 3,327,149,840.64
  5. Step 5: Solve for x
    x = 3,327,149,840.64/75,963.44
  6. Step 6: Final answer
    x = 43,799.36

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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.