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Finding the Fourth Proportional to 53,198.31, 79,788.81 and 25,118.31

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Solution

The fourth proportional to 53,198.31, 79,788.81 and 25,118.31 is: 37,673.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,198.31 : 79,788.81 = 25,118.31 : x
  2. Step 2: Convert to fraction form
    53,198.31/79,788.81 = 25,118.31/x
  3. Step 3: Cross multiply
    53,198.31x = 79,788.81 × 25,118.31
  4. Step 4: Simplify right side
    53,198.31x = 2,004,160,064.11
  5. Step 5: Solve for x
    x = 2,004,160,064.11/53,198.31
  6. Step 6: Final answer
    x = 37,673.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.