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Finding the Fourth Proportional to 118,270.80, 177,535.80 and 73,947.60

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Solution

The fourth proportional to 118,270.80, 177,535.80 and 73,947.60 is: 111,002.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,270.80 : 177,535.80 = 73,947.60 : x
  2. Step 2: Convert to fraction form
    118,270.80/177,535.80 = 73,947.60/x
  3. Step 3: Cross multiply
    118,270.80x = 177,535.80 × 73,947.60
  4. Step 4: Simplify right side
    118,270.80x = 13,128,346,324.08
  5. Step 5: Solve for x
    x = 13,128,346,324.08/118,270.80
  6. Step 6: Final answer
    x = 111,002.43

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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.