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Finding the Fourth Proportional to 250,261.88, 375,429.44 and 72,745.82

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Solution

The fourth proportional to 250,261.88, 375,429.44 and 72,745.82 is: 109,129.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,261.88 : 375,429.44 = 72,745.82 : x
  2. Step 2: Convert to fraction form
    250,261.88/375,429.44 = 72,745.82/x
  3. Step 3: Cross multiply
    250,261.88x = 375,429.44 × 72,745.82
  4. Step 4: Simplify right side
    250,261.88x = 27,310,922,464.94
  5. Step 5: Solve for x
    x = 27,310,922,464.94/250,261.88
  6. Step 6: Final answer
    x = 109,129.37

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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.