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Finding the Fourth Proportional to 61,090.39, 91,559.04 and 33,009.31

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Solution

The fourth proportional to 61,090.39, 91,559.04 and 33,009.31 is: 49,472.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,090.39 : 91,559.04 = 33,009.31 : x
  2. Step 2: Convert to fraction form
    61,090.39/91,559.04 = 33,009.31/x
  3. Step 3: Cross multiply
    61,090.39x = 91,559.04 × 33,009.31
  4. Step 4: Simplify right side
    61,090.39x = 3,022,300,734.66
  5. Step 5: Solve for x
    x = 3,022,300,734.66/61,090.39
  6. Step 6: Final answer
    x = 49,472.61

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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.