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Finding the Fourth Proportional to 118,273.80, 177,540.30 and 73,950.60

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Solution

The fourth proportional to 118,273.80, 177,540.30 and 73,950.60 is: 111,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,273.80 : 177,540.30 = 73,950.60 : x
  2. Step 2: Convert to fraction form
    118,273.80/177,540.30 = 73,950.60/x
  3. Step 3: Cross multiply
    118,273.80x = 177,540.30 × 73,950.60
  4. Step 4: Simplify right side
    118,273.80x = 13,129,211,709.18
  5. Step 5: Solve for x
    x = 13,129,211,709.18/118,273.80
  6. Step 6: Final answer
    x = 111,006.93

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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.