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Finding the Fourth Proportional to 74,874.82, 103,289.96 and 44,638.86

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Solution

The fourth proportional to 74,874.82, 103,289.96 and 44,638.86 is: 61,579.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,874.82 : 103,289.96 = 44,638.86 : x
  2. Step 2: Convert to fraction form
    74,874.82/103,289.96 = 44,638.86/x
  3. Step 3: Cross multiply
    74,874.82x = 103,289.96 × 44,638.86
  4. Step 4: Simplify right side
    74,874.82x = 4,610,746,063.85
  5. Step 5: Solve for x
    x = 4,610,746,063.85/74,874.82
  6. Step 6: Final answer
    x = 61,579.39

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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.