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Finding the Fourth Proportional to 167,986.60, 251,979.90 and 43,327.60

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Solution

The fourth proportional to 167,986.60, 251,979.90 and 43,327.60 is: 64,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,986.60 : 251,979.90 = 43,327.60 : x
  2. Step 2: Convert to fraction form
    167,986.60/251,979.90 = 43,327.60/x
  3. Step 3: Cross multiply
    167,986.60x = 251,979.90 × 43,327.60
  4. Step 4: Simplify right side
    167,986.60x = 10,917,684,315.24
  5. Step 5: Solve for x
    x = 10,917,684,315.24/167,986.60
  6. Step 6: Final answer
    x = 64,991.40

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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.