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Finding the Fourth Proportional to 77,805.88, 116,719.62 and 25,198.36

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Solution

The fourth proportional to 77,805.88, 116,719.62 and 25,198.36 is: 37,801.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,805.88 : 116,719.62 = 25,198.36 : x
  2. Step 2: Convert to fraction form
    77,805.88/116,719.62 = 25,198.36/x
  3. Step 3: Cross multiply
    77,805.88x = 116,719.62 × 25,198.36
  4. Step 4: Simplify right side
    77,805.88x = 2,941,143,003.82
  5. Step 5: Solve for x
    x = 2,941,143,003.82/77,805.88
  6. Step 6: Final answer
    x = 37,801.04

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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.