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Finding the Fourth Proportional to 57,243.70, 85,825.55 and 33,858.10

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Solution

The fourth proportional to 57,243.70, 85,825.55 and 33,858.10 is: 50,763.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,243.70 : 85,825.55 = 33,858.10 : x
  2. Step 2: Convert to fraction form
    57,243.70/85,825.55 = 33,858.10/x
  3. Step 3: Cross multiply
    57,243.70x = 85,825.55 × 33,858.10
  4. Step 4: Simplify right side
    57,243.70x = 2,905,890,054.46
  5. Step 5: Solve for x
    x = 2,905,890,054.46/57,243.70
  6. Step 6: Final answer
    x = 50,763.49

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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.