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Finding the Fourth Proportional to 247,514.80, 371,272.20 and 178,049.20

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Solution

The fourth proportional to 247,514.80, 371,272.20 and 178,049.20 is: 267,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,514.80 : 371,272.20 = 178,049.20 : x
  2. Step 2: Convert to fraction form
    247,514.80/371,272.20 = 178,049.20/x
  3. Step 3: Cross multiply
    247,514.80x = 371,272.20 × 178,049.20
  4. Step 4: Simplify right side
    247,514.80x = 66,104,718,192.24
  5. Step 5: Solve for x
    x = 66,104,718,192.24/247,514.80
  6. Step 6: Final answer
    x = 267,073.80

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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.