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Finding the Fourth Proportional to 75,716.60, 104,489.60 and 41,726.31

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Solution

The fourth proportional to 75,716.60, 104,489.60 and 41,726.31 is: 57,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,716.60 : 104,489.60 = 41,726.31 : x
  2. Step 2: Convert to fraction form
    75,716.60/104,489.60 = 41,726.31/x
  3. Step 3: Cross multiply
    75,716.60x = 104,489.60 × 41,726.31
  4. Step 4: Simplify right side
    75,716.60x = 4,359,965,441.38
  5. Step 5: Solve for x
    x = 4,359,965,441.38/75,716.60
  6. Step 6: Final answer
    x = 57,582.69

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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.