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Finding the Fourth Proportional to 71,154, 98,194.48 and 39,324.96

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Solution

The fourth proportional to 71,154, 98,194.48 and 39,324.96 is: 54,269.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,154 : 98,194.48 = 39,324.96 : x
  2. Step 2: Convert to fraction form
    71,154/98,194.48 = 39,324.96/x
  3. Step 3: Cross multiply
    71,154x = 98,194.48 × 39,324.96
  4. Step 4: Simplify right side
    71,154x = 3,861,493,998.22
  5. Step 5: Solve for x
    x = 3,861,493,998.22/71,154
  6. Step 6: Final answer
    x = 54,269.53

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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.