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Finding the Fourth Proportional to 118,181, 177,172.07 and 54,969.01

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Solution

The fourth proportional to 118,181, 177,172.07 and 54,969.01 is: 82,407.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,181 : 177,172.07 = 54,969.01 : x
  2. Step 2: Convert to fraction form
    118,181/177,172.07 = 54,969.01/x
  3. Step 3: Cross multiply
    118,181x = 177,172.07 × 54,969.01
  4. Step 4: Simplify right side
    118,181x = 9,738,973,287.55
  5. Step 5: Solve for x
    x = 9,738,973,287.55/118,181
  6. Step 6: Final answer
    x = 82,407.27

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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.