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Finding the Fourth Proportional to 326,796.63, 490,273.76 and 113,533.48

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Solution

The fourth proportional to 326,796.63, 490,273.76 and 113,533.48 is: 170,327.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,796.63 : 490,273.76 = 113,533.48 : x
  2. Step 2: Convert to fraction form
    326,796.63/490,273.76 = 113,533.48/x
  3. Step 3: Cross multiply
    326,796.63x = 490,273.76 × 113,533.48
  4. Step 4: Simplify right side
    326,796.63x = 55,662,487,022.16
  5. Step 5: Solve for x
    x = 55,662,487,022.16/326,796.63
  6. Step 6: Final answer
    x = 170,327.61

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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.