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Finding the Fourth Proportional to 71,296.63, 98,399.89 and 41,076.20

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Solution

The fourth proportional to 71,296.63, 98,399.89 and 41,076.20 is: 56,691.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,296.63 : 98,399.89 = 41,076.20 : x
  2. Step 2: Convert to fraction form
    71,296.63/98,399.89 = 41,076.20/x
  3. Step 3: Cross multiply
    71,296.63x = 98,399.89 × 41,076.20
  4. Step 4: Simplify right side
    71,296.63x = 4,041,893,561.62
  5. Step 5: Solve for x
    x = 4,041,893,561.62/71,296.63
  6. Step 6: Final answer
    x = 56,691.23

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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.