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Finding the Fourth Proportional to 267,745.38, 401,071.31 and 149,479.71

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Solution

The fourth proportional to 267,745.38, 401,071.31 and 149,479.71 is: 223,914.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,745.38 : 401,071.31 = 149,479.71 : x
  2. Step 2: Convert to fraction form
    267,745.38/401,071.31 = 149,479.71/x
  3. Step 3: Cross multiply
    267,745.38x = 401,071.31 × 149,479.71
  4. Step 4: Simplify right side
    267,745.38x = 59,952,022,258.08
  5. Step 5: Solve for x
    x = 59,952,022,258.08/267,745.38
  6. Step 6: Final answer
    x = 223,914.31

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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.