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Finding the Fourth Proportional to 75,137.25, 103,692.65 and 41,603.25

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Solution

The fourth proportional to 75,137.25, 103,692.65 and 41,603.25 is: 57,414.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,137.25 : 103,692.65 = 41,603.25 : x
  2. Step 2: Convert to fraction form
    75,137.25/103,692.65 = 41,603.25/x
  3. Step 3: Cross multiply
    75,137.25x = 103,692.65 × 41,603.25
  4. Step 4: Simplify right side
    75,137.25x = 4,313,951,241.11
  5. Step 5: Solve for x
    x = 4,313,951,241.11/75,137.25
  6. Step 6: Final answer
    x = 57,414.28

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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.