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Finding the Fourth Proportional to 372,048.80, 556,906.80 and 267,072.80

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Solution

The fourth proportional to 372,048.80, 556,906.80 and 267,072.80 is: 399,771.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,048.80 : 556,906.80 = 267,072.80 : x
  2. Step 2: Convert to fraction form
    372,048.80/556,906.80 = 267,072.80/x
  3. Step 3: Cross multiply
    372,048.80x = 556,906.80 × 267,072.80
  4. Step 4: Simplify right side
    372,048.80x = 148,734,658,415.04
  5. Step 5: Solve for x
    x = 148,734,658,415.04/372,048.80
  6. Step 6: Final answer
    x = 399,771.91

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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.