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Finding the Fourth Proportional to 75,897.78, 104,738.43 and 41,908.39

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Solution

The fourth proportional to 75,897.78, 104,738.43 and 41,908.39 is: 57,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,897.78 : 104,738.43 = 41,908.39 : x
  2. Step 2: Convert to fraction form
    75,897.78/104,738.43 = 41,908.39/x
  3. Step 3: Cross multiply
    75,897.78x = 104,738.43 × 41,908.39
  4. Step 4: Simplify right side
    75,897.78x = 4,389,418,867.74
  5. Step 5: Solve for x
    x = 4,389,418,867.74/75,897.78
  6. Step 6: Final answer
    x = 57,833.30

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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.