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Finding the Fourth Proportional to 281,692.30, 422,566.05 and 82,014.70

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Solution

The fourth proportional to 281,692.30, 422,566.05 and 82,014.70 is: 123,030.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,692.30 : 422,566.05 = 82,014.70 : x
  2. Step 2: Convert to fraction form
    281,692.30/422,566.05 = 82,014.70/x
  3. Step 3: Cross multiply
    281,692.30x = 422,566.05 × 82,014.70
  4. Step 4: Simplify right side
    281,692.30x = 34,656,627,820.94
  5. Step 5: Solve for x
    x = 34,656,627,820.94/281,692.30
  6. Step 6: Final answer
    x = 123,030.09

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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.