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Finding the Fourth Proportional to 69,040.53, 103,692.08 and 42,927.75

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Solution

The fourth proportional to 69,040.53, 103,692.08 and 42,927.75 is: 64,473.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,040.53 : 103,692.08 = 42,927.75 : x
  2. Step 2: Convert to fraction form
    69,040.53/103,692.08 = 42,927.75/x
  3. Step 3: Cross multiply
    69,040.53x = 103,692.08 × 42,927.75
  4. Step 4: Simplify right side
    69,040.53x = 4,451,267,794.54
  5. Step 5: Solve for x
    x = 4,451,267,794.54/69,040.53
  6. Step 6: Final answer
    x = 64,473.26

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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.