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Finding the Fourth Proportional to 75,339.88, 103,973.89 and 41,805.88

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Solution

The fourth proportional to 75,339.88, 103,973.89 and 41,805.88 is: 57,694.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,339.88 : 103,973.89 = 41,805.88 : x
  2. Step 2: Convert to fraction form
    75,339.88/103,973.89 = 41,805.88/x
  3. Step 3: Cross multiply
    75,339.88x = 103,973.89 × 41,805.88
  4. Step 4: Simplify right side
    75,339.88x = 4,346,719,448.60
  5. Step 5: Solve for x
    x = 4,346,719,448.60/75,339.88
  6. Step 6: Final answer
    x = 57,694.81

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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.