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Finding the Fourth Proportional to 273,116.80, 409,675.20 and 198,467.20

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Solution

The fourth proportional to 273,116.80, 409,675.20 and 198,467.20 is: 297,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,116.80 : 409,675.20 = 198,467.20 : x
  2. Step 2: Convert to fraction form
    273,116.80/409,675.20 = 198,467.20/x
  3. Step 3: Cross multiply
    273,116.80x = 409,675.20 × 198,467.20
  4. Step 4: Simplify right side
    273,116.80x = 81,307,089,853.44
  5. Step 5: Solve for x
    x = 81,307,089,853.44/273,116.80
  6. Step 6: Final answer
    x = 297,700.80

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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.