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Finding the Fourth Proportional to 254,680.70, 382,020.62 and 67,692.20

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Solution

The fourth proportional to 254,680.70, 382,020.62 and 67,692.20 is: 101,538.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,680.70 : 382,020.62 = 67,692.20 : x
  2. Step 2: Convert to fraction form
    254,680.70/382,020.62 = 67,692.20/x
  3. Step 3: Cross multiply
    254,680.70x = 382,020.62 × 67,692.20
  4. Step 4: Simplify right side
    254,680.70x = 25,859,813,964.60
  5. Step 5: Solve for x
    x = 25,859,813,964.60/254,680.70
  6. Step 6: Final answer
    x = 101,538.18

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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.