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Finding the Fourth Proportional to 326,876.38, 490,361.34 and 158,258.27

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Solution

The fourth proportional to 326,876.38, 490,361.34 and 158,258.27 is: 237,410.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,876.38 : 490,361.34 = 158,258.27 : x
  2. Step 2: Convert to fraction form
    326,876.38/490,361.34 = 158,258.27/x
  3. Step 3: Cross multiply
    326,876.38x = 490,361.34 × 158,258.27
  4. Step 4: Simplify right side
    326,876.38x = 77,603,739,162.65
  5. Step 5: Solve for x
    x = 77,603,739,162.65/326,876.38
  6. Step 6: Final answer
    x = 237,410.06

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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.