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Finding the Fourth Proportional to 74,574.57, 102,912.87 and 41,040.57

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Solution

The fourth proportional to 74,574.57, 102,912.87 and 41,040.57 is: 56,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,574.57 : 102,912.87 = 41,040.57 : x
  2. Step 2: Convert to fraction form
    74,574.57/102,912.87 = 41,040.57/x
  3. Step 3: Cross multiply
    74,574.57x = 102,912.87 × 41,040.57
  4. Step 4: Simplify right side
    74,574.57x = 4,223,602,845.14
  5. Step 5: Solve for x
    x = 4,223,602,845.14/74,574.57
  6. Step 6: Final answer
    x = 56,635.97

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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.