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Finding the Fourth Proportional to 208,463.44, 312,690.84 and 50,692.72

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Solution

The fourth proportional to 208,463.44, 312,690.84 and 50,692.72 is: 76,038.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,463.44 : 312,690.84 = 50,692.72 : x
  2. Step 2: Convert to fraction form
    208,463.44/312,690.84 = 50,692.72/x
  3. Step 3: Cross multiply
    208,463.44x = 312,690.84 × 50,692.72
  4. Step 4: Simplify right side
    208,463.44x = 15,851,149,198.68
  5. Step 5: Solve for x
    x = 15,851,149,198.68/208,463.44
  6. Step 6: Final answer
    x = 76,038.03

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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.