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Finding the Fourth Proportional to 49,896.70, 74,735.70 and 43,335.70

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Solution

The fourth proportional to 49,896.70, 74,735.70 and 43,335.70 is: 64,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,896.70 : 74,735.70 = 43,335.70 : x
  2. Step 2: Convert to fraction form
    49,896.70/74,735.70 = 43,335.70/x
  3. Step 3: Cross multiply
    49,896.70x = 74,735.70 × 43,335.70
  4. Step 4: Simplify right side
    49,896.70x = 3,238,723,874.49
  5. Step 5: Solve for x
    x = 3,238,723,874.49/49,896.70
  6. Step 6: Final answer
    x = 64,908.58

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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.