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Finding the Fourth Proportional to 118,222.80, 177,382.80 and 43,378.80

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Solution

The fourth proportional to 118,222.80, 177,382.80 and 43,378.80 is: 65,086.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,222.80 : 177,382.80 = 43,378.80 : x
  2. Step 2: Convert to fraction form
    118,222.80/177,382.80 = 43,378.80/x
  3. Step 3: Cross multiply
    118,222.80x = 177,382.80 × 43,378.80
  4. Step 4: Simplify right side
    118,222.80x = 7,694,653,004.64
  5. Step 5: Solve for x
    x = 7,694,653,004.64/118,222.80
  6. Step 6: Final answer
    x = 65,086.03

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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.