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Finding the Fourth Proportional to 75,326.66, 103,949.93 and 43,494.87

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Solution

The fourth proportional to 75,326.66, 103,949.93 and 43,494.87 is: 60,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,326.66 : 103,949.93 = 43,494.87 : x
  2. Step 2: Convert to fraction form
    75,326.66/103,949.93 = 43,494.87/x
  3. Step 3: Cross multiply
    75,326.66x = 103,949.93 × 43,494.87
  4. Step 4: Simplify right side
    75,326.66x = 4,521,289,190.41
  5. Step 5: Solve for x
    x = 4,521,289,190.41/75,326.66
  6. Step 6: Final answer
    x = 60,022.43

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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.