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Finding the Fourth Proportional to 118,698.51, 177,918.22 and 43,755.49

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Solution

The fourth proportional to 118,698.51, 177,918.22 and 43,755.49 is: 65,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,698.51 : 177,918.22 = 43,755.49 : x
  2. Step 2: Convert to fraction form
    118,698.51/177,918.22 = 43,755.49/x
  3. Step 3: Cross multiply
    118,698.51x = 177,918.22 × 43,755.49
  4. Step 4: Simplify right side
    118,698.51x = 7,784,899,173.12
  5. Step 5: Solve for x
    x = 7,784,899,173.12/118,698.51
  6. Step 6: Final answer
    x = 65,585.48

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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.