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Finding the Fourth Proportional to 75,361.87, 112,937.25 and 56,629.97

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Solution

The fourth proportional to 75,361.87, 112,937.25 and 56,629.97 is: 84,865.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,361.87 : 112,937.25 = 56,629.97 : x
  2. Step 2: Convert to fraction form
    75,361.87/112,937.25 = 56,629.97/x
  3. Step 3: Cross multiply
    75,361.87x = 112,937.25 × 56,629.97
  4. Step 4: Simplify right side
    75,361.87x = 6,395,633,150.57
  5. Step 5: Solve for x
    x = 6,395,633,150.57/75,361.87
  6. Step 6: Final answer
    x = 84,865.64

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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.