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Finding the Fourth Proportional to 71,606.50, 98,843.43 and 61,494.19

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Solution

The fourth proportional to 71,606.50, 98,843.43 and 61,494.19 is: 84,884.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,606.50 : 98,843.43 = 61,494.19 : x
  2. Step 2: Convert to fraction form
    71,606.50/98,843.43 = 61,494.19/x
  3. Step 3: Cross multiply
    71,606.50x = 98,843.43 × 61,494.19
  4. Step 4: Simplify right side
    71,606.50x = 6,078,296,664.67
  5. Step 5: Solve for x
    x = 6,078,296,664.67/71,606.50
  6. Step 6: Final answer
    x = 84,884.71

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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.