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Finding the Fourth Proportional to 326,955.15, 490,442.00 and 90,297.83

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Solution

The fourth proportional to 326,955.15, 490,442.00 and 90,297.83 is: 135,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,955.15 : 490,442.00 = 90,297.83 : x
  2. Step 2: Convert to fraction form
    326,955.15/490,442.00 = 90,297.83/x
  3. Step 3: Cross multiply
    326,955.15x = 490,442.00 × 90,297.83
  4. Step 4: Simplify right side
    326,955.15x = 44,285,846,114.39
  5. Step 5: Solve for x
    x = 44,285,846,114.39/326,955.15
  6. Step 6: Final answer
    x = 135,449.30

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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.