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Finding the Fourth Proportional to 263,692.75, 395,379.65 and 103,577.01

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Solution

The fourth proportional to 263,692.75, 395,379.65 and 103,577.01 is: 155,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,692.75 : 395,379.65 = 103,577.01 : x
  2. Step 2: Convert to fraction form
    263,692.75/395,379.65 = 103,577.01/x
  3. Step 3: Cross multiply
    263,692.75x = 395,379.65 × 103,577.01
  4. Step 4: Simplify right side
    263,692.75x = 40,952,241,961.85
  5. Step 5: Solve for x
    x = 40,952,241,961.85/263,692.75
  6. Step 6: Final answer
    x = 155,302.87

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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.