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Finding the Fourth Proportional to 220,492.67, 330,721.04 and 70,692.62

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Solution

The fourth proportional to 220,492.67, 330,721.04 and 70,692.62 is: 106,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,492.67 : 330,721.04 = 70,692.62 : x
  2. Step 2: Convert to fraction form
    220,492.67/330,721.04 = 70,692.62/x
  3. Step 3: Cross multiply
    220,492.67x = 330,721.04 × 70,692.62
  4. Step 4: Simplify right side
    220,492.67x = 23,379,535,329.85
  5. Step 5: Solve for x
    x = 23,379,535,329.85/220,492.67
  6. Step 6: Final answer
    x = 106,033.17

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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.