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Finding the Fourth Proportional to 118,939.54, 178,405.78 and 44,058.03

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Solution

The fourth proportional to 118,939.54, 178,405.78 and 44,058.03 is: 66,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,939.54 : 178,405.78 = 44,058.03 : x
  2. Step 2: Convert to fraction form
    118,939.54/178,405.78 = 44,058.03/x
  3. Step 3: Cross multiply
    118,939.54x = 178,405.78 × 44,058.03
  4. Step 4: Simplify right side
    118,939.54x = 7,860,206,448.90
  5. Step 5: Solve for x
    x = 7,860,206,448.90/118,939.54
  6. Step 6: Final answer
    x = 66,085.73

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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.