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Finding the Fourth Proportional to 49,361.78, 74,042.68 and 39,454.68

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Solution

The fourth proportional to 49,361.78, 74,042.68 and 39,454.68 is: 59,182.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,361.78 : 74,042.68 = 39,454.68 : x
  2. Step 2: Convert to fraction form
    49,361.78/74,042.68 = 39,454.68/x
  3. Step 3: Cross multiply
    49,361.78x = 74,042.68 × 39,454.68
  4. Step 4: Simplify right side
    49,361.78x = 2,921,330,245.74
  5. Step 5: Solve for x
    x = 2,921,330,245.74/49,361.78
  6. Step 6: Final answer
    x = 59,182.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.