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Finding the Fourth Proportional to 74,615.52, 102,969.44 and 41,081.52

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Solution

The fourth proportional to 74,615.52, 102,969.44 and 41,081.52 is: 56,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,615.52 : 102,969.44 = 41,081.52 : x
  2. Step 2: Convert to fraction form
    74,615.52/102,969.44 = 41,081.52/x
  3. Step 3: Cross multiply
    74,615.52x = 102,969.44 × 41,081.52
  4. Step 4: Simplify right side
    74,615.52x = 4,230,141,108.75
  5. Step 5: Solve for x
    x = 4,230,141,108.75/74,615.52
  6. Step 6: Final answer
    x = 56,692.51

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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.