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Finding the Fourth Proportional to 74,858.45, 103,322.02 and 49,369.41

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Solution

The fourth proportional to 74,858.45, 103,322.02 and 49,369.41 is: 68,141.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,858.45 : 103,322.02 = 49,369.41 : x
  2. Step 2: Convert to fraction form
    74,858.45/103,322.02 = 49,369.41/x
  3. Step 3: Cross multiply
    74,858.45x = 103,322.02 × 49,369.41
  4. Step 4: Simplify right side
    74,858.45x = 5,100,947,167.41
  5. Step 5: Solve for x
    x = 5,100,947,167.41/74,858.45
  6. Step 6: Final answer
    x = 68,141.23

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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.