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Finding the Fourth Proportional to 481,987.82, 665,125.08 and 267,131.54

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Solution

The fourth proportional to 481,987.82, 665,125.08 and 267,131.54 is: 368,631.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,987.82 : 665,125.08 = 267,131.54 : x
  2. Step 2: Convert to fraction form
    481,987.82/665,125.08 = 267,131.54/x
  3. Step 3: Cross multiply
    481,987.82x = 665,125.08 × 267,131.54
  4. Step 4: Simplify right side
    481,987.82x = 177,675,886,913.02
  5. Step 5: Solve for x
    x = 177,675,886,913.02/481,987.82
  6. Step 6: Final answer
    x = 368,631.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.