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Finding the Fourth Proportional to 248,668.80, 373,003.20 and 214,843.20

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Solution

The fourth proportional to 248,668.80, 373,003.20 and 214,843.20 is: 322,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,668.80 : 373,003.20 = 214,843.20 : x
  2. Step 2: Convert to fraction form
    248,668.80/373,003.20 = 214,843.20/x
  3. Step 3: Cross multiply
    248,668.80x = 373,003.20 × 214,843.20
  4. Step 4: Simplify right side
    248,668.80x = 80,137,201,098.24
  5. Step 5: Solve for x
    x = 80,137,201,098.24/248,668.80
  6. Step 6: Final answer
    x = 322,264.80

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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.