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Finding the Fourth Proportional to 71,409.96, 98,541.83 and 39,576.96

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Solution

The fourth proportional to 71,409.96, 98,541.83 and 39,576.96 is: 54,614.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,409.96 : 98,541.83 = 39,576.96 : x
  2. Step 2: Convert to fraction form
    71,409.96/98,541.83 = 39,576.96/x
  3. Step 3: Cross multiply
    71,409.96x = 98,541.83 × 39,576.96
  4. Step 4: Simplify right side
    71,409.96x = 3,899,986,163.18
  5. Step 5: Solve for x
    x = 3,899,986,163.18/71,409.96
  6. Step 6: Final answer
    x = 54,614.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.