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Finding the Fourth Proportional to 61,189.19, 91,811.31 and 33,076.32

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Solution

The fourth proportional to 61,189.19, 91,811.31 and 33,076.32 is: 49,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,189.19 : 91,811.31 = 33,076.32 : x
  2. Step 2: Convert to fraction form
    61,189.19/91,811.31 = 33,076.32/x
  3. Step 3: Cross multiply
    61,189.19x = 91,811.31 × 33,076.32
  4. Step 4: Simplify right side
    61,189.19x = 3,036,780,269.18
  5. Step 5: Solve for x
    x = 3,036,780,269.18/61,189.19
  6. Step 6: Final answer
    x = 49,629.36

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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.