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Finding the Fourth Proportional to 167,428.36, 251,147.40 and 73,941.40

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Solution

The fourth proportional to 167,428.36, 251,147.40 and 73,941.40 is: 110,914.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,428.36 : 251,147.40 = 73,941.40 : x
  2. Step 2: Convert to fraction form
    167,428.36/251,147.40 = 73,941.40/x
  3. Step 3: Cross multiply
    167,428.36x = 251,147.40 × 73,941.40
  4. Step 4: Simplify right side
    167,428.36x = 18,570,190,362.36
  5. Step 5: Solve for x
    x = 18,570,190,362.36/167,428.36
  6. Step 6: Final answer
    x = 110,914.25

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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.