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Finding the Fourth Proportional to 111,873.48, 167,871.72 and 52,707.60

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Solution

The fourth proportional to 111,873.48, 167,871.72 and 52,707.60 is: 79,090.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,873.48 : 167,871.72 = 52,707.60 : x
  2. Step 2: Convert to fraction form
    111,873.48/167,871.72 = 52,707.60/x
  3. Step 3: Cross multiply
    111,873.48x = 167,871.72 × 52,707.60
  4. Step 4: Simplify right side
    111,873.48x = 8,848,115,469.07
  5. Step 5: Solve for x
    x = 8,848,115,469.07/111,873.48
  6. Step 6: Final answer
    x = 79,090.37

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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.