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Finding the Fourth Proportional to 89,912.76, 134,883.74 and 33,757.28

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Solution

The fourth proportional to 89,912.76, 134,883.74 and 33,757.28 is: 50,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,912.76 : 134,883.74 = 33,757.28 : x
  2. Step 2: Convert to fraction form
    89,912.76/134,883.74 = 33,757.28/x
  3. Step 3: Cross multiply
    89,912.76x = 134,883.74 × 33,757.28
  4. Step 4: Simplify right side
    89,912.76x = 4,553,308,178.63
  5. Step 5: Solve for x
    x = 4,553,308,178.63/89,912.76
  6. Step 6: Final answer
    x = 50,641.40

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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.