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Finding the Fourth Proportional to 74,855.78, 103,298.37 and 44,625.50

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Solution

The fourth proportional to 74,855.78, 103,298.37 and 44,625.50 is: 61,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,855.78 : 103,298.37 = 44,625.50 : x
  2. Step 2: Convert to fraction form
    74,855.78/103,298.37 = 44,625.50/x
  3. Step 3: Cross multiply
    74,855.78x = 103,298.37 × 44,625.50
  4. Step 4: Simplify right side
    74,855.78x = 4,609,741,410.44
  5. Step 5: Solve for x
    x = 4,609,741,410.44/74,855.78
  6. Step 6: Final answer
    x = 61,581.64

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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.