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Finding the Fourth Proportional to 74,859, 103,305.60 and 41,325

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Solution

The fourth proportional to 74,859, 103,305.60 and 41,325 is: 57,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,859 : 103,305.60 = 41,325 : x
  2. Step 2: Convert to fraction form
    74,859/103,305.60 = 41,325/x
  3. Step 3: Cross multiply
    74,859x = 103,305.60 × 41,325
  4. Step 4: Simplify right side
    74,859x = 4,269,103,920.00
  5. Step 5: Solve for x
    x = 4,269,103,920.00/74,859
  6. Step 6: Final answer
    x = 57,028.60

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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.