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Finding the Fourth Proportional to 74,809.44, 112,255.47 and 30,467.41

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Solution

The fourth proportional to 74,809.44, 112,255.47 and 30,467.41 is: 45,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,809.44 : 112,255.47 = 30,467.41 : x
  2. Step 2: Convert to fraction form
    74,809.44/112,255.47 = 30,467.41/x
  3. Step 3: Cross multiply
    74,809.44x = 112,255.47 × 30,467.41
  4. Step 4: Simplify right side
    74,809.44x = 3,420,133,148.59
  5. Step 5: Solve for x
    x = 3,420,133,148.59/74,809.44
  6. Step 6: Final answer
    x = 45,717.94

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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.