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Finding the Fourth Proportional to 74,911.92, 103,374.84 and 41,377.20

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Solution

The fourth proportional to 74,911.92, 103,374.84 and 41,377.20 is: 57,098.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,911.92 : 103,374.84 = 41,377.20 : x
  2. Step 2: Convert to fraction form
    74,911.92/103,374.84 = 41,377.20/x
  3. Step 3: Cross multiply
    74,911.92x = 103,374.84 × 41,377.20
  4. Step 4: Simplify right side
    74,911.92x = 4,277,361,429.65
  5. Step 5: Solve for x
    x = 4,277,361,429.65/74,911.92
  6. Step 6: Final answer
    x = 57,098.54

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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.