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Finding the Fourth Proportional to 219,912.22, 329,692.22 and 144,480.16

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Solution

The fourth proportional to 219,912.22, 329,692.22 and 144,480.16 is: 216,604.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,912.22 : 329,692.22 = 144,480.16 : x
  2. Step 2: Convert to fraction form
    219,912.22/329,692.22 = 144,480.16/x
  3. Step 3: Cross multiply
    219,912.22x = 329,692.22 × 144,480.16
  4. Step 4: Simplify right side
    219,912.22x = 47,633,984,696.36
  5. Step 5: Solve for x
    x = 47,633,984,696.36/219,912.22
  6. Step 6: Final answer
    x = 216,604.54

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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.