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Finding the Fourth Proportional to 75,399.66, 104,046.93 and 41,401.53

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Solution

The fourth proportional to 75,399.66, 104,046.93 and 41,401.53 is: 57,131.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,399.66 : 104,046.93 = 41,401.53 : x
  2. Step 2: Convert to fraction form
    75,399.66/104,046.93 = 41,401.53/x
  3. Step 3: Cross multiply
    75,399.66x = 104,046.93 × 41,401.53
  4. Step 4: Simplify right side
    75,399.66x = 4,307,702,093.80
  5. Step 5: Solve for x
    x = 4,307,702,093.80/75,399.66
  6. Step 6: Final answer
    x = 57,131.59

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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.