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Finding the Fourth Proportional to 61,202.70, 91,804.05 and 33,111.90

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Solution

The fourth proportional to 61,202.70, 91,804.05 and 33,111.90 is: 49,667.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,202.70 : 91,804.05 = 33,111.90 : x
  2. Step 2: Convert to fraction form
    61,202.70/91,804.05 = 33,111.90/x
  3. Step 3: Cross multiply
    61,202.70x = 91,804.05 × 33,111.90
  4. Step 4: Simplify right side
    61,202.70x = 3,039,806,523.20
  5. Step 5: Solve for x
    x = 3,039,806,523.20/61,202.70
  6. Step 6: Final answer
    x = 49,667.85

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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.