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Finding the Fourth Proportional to 104,912.31, 157,390.85 and 33,838.94

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Solution

The fourth proportional to 104,912.31, 157,390.85 and 33,838.94 is: 50,765.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,912.31 : 157,390.85 = 33,838.94 : x
  2. Step 2: Convert to fraction form
    104,912.31/157,390.85 = 33,838.94/x
  3. Step 3: Cross multiply
    104,912.31x = 157,390.85 × 33,838.94
  4. Step 4: Simplify right side
    104,912.31x = 5,325,939,753.98
  5. Step 5: Solve for x
    x = 5,325,939,753.98/104,912.31
  6. Step 6: Final answer
    x = 50,765.63

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1.5x scale

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.