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Finding the Fourth Proportional to 138,912.96, 208,366.56 and 33,732.48

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Solution

The fourth proportional to 138,912.96, 208,366.56 and 33,732.48 is: 50,598.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,912.96 : 208,366.56 = 33,732.48 : x
  2. Step 2: Convert to fraction form
    138,912.96/208,366.56 = 33,732.48/x
  3. Step 3: Cross multiply
    138,912.96x = 208,366.56 × 33,732.48
  4. Step 4: Simplify right side
    138,912.96x = 7,028,720,817.87
  5. Step 5: Solve for x
    x = 7,028,720,817.87/138,912.96
  6. Step 6: Final answer
    x = 50,598.02

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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.