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Finding the Fourth Proportional to 71,930.36, 99,269.31 and 41,715.44

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Solution

The fourth proportional to 71,930.36, 99,269.31 and 41,715.44 is: 57,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,930.36 : 99,269.31 = 41,715.44 : x
  2. Step 2: Convert to fraction form
    71,930.36/99,269.31 = 41,715.44/x
  3. Step 3: Cross multiply
    71,930.36x = 99,269.31 × 41,715.44
  4. Step 4: Simplify right side
    71,930.36x = 4,141,062,945.15
  5. Step 5: Solve for x
    x = 4,141,062,945.15/71,930.36
  6. Step 6: Final answer
    x = 57,570.45

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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.