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Finding the Fourth Proportional to 118,820.52, 178,250.49 and 43,940.88

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Solution

The fourth proportional to 118,820.52, 178,250.49 and 43,940.88 is: 65,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,820.52 : 178,250.49 = 43,940.88 : x
  2. Step 2: Convert to fraction form
    118,820.52/178,250.49 = 43,940.88/x
  3. Step 3: Cross multiply
    118,820.52x = 178,250.49 × 43,940.88
  4. Step 4: Simplify right side
    118,820.52x = 7,832,483,391.03
  5. Step 5: Solve for x
    x = 7,832,483,391.03/118,820.52
  6. Step 6: Final answer
    x = 65,918.61

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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.