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Finding the Fourth Proportional to 329,794.80, 494,692.20 and 130,048.80

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Solution

The fourth proportional to 329,794.80, 494,692.20 and 130,048.80 is: 195,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,794.80 : 494,692.20 = 130,048.80 : x
  2. Step 2: Convert to fraction form
    329,794.80/494,692.20 = 130,048.80/x
  3. Step 3: Cross multiply
    329,794.80x = 494,692.20 × 130,048.80
  4. Step 4: Simplify right side
    329,794.80x = 64,334,126,979.36
  5. Step 5: Solve for x
    x = 64,334,126,979.36/329,794.80
  6. Step 6: Final answer
    x = 195,073.20

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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.