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Finding the Fourth Proportional to 75,692.56, 104,451.14 and 43,855.96

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Solution

The fourth proportional to 75,692.56, 104,451.14 and 43,855.96 is: 60,518.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,692.56 : 104,451.14 = 43,855.96 : x
  2. Step 2: Convert to fraction form
    75,692.56/104,451.14 = 43,855.96/x
  3. Step 3: Cross multiply
    75,692.56x = 104,451.14 × 43,855.96
  4. Step 4: Simplify right side
    75,692.56x = 4,580,805,017.79
  5. Step 5: Solve for x
    x = 4,580,805,017.79/75,692.56
  6. Step 6: Final answer
    x = 60,518.56

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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.