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Finding the Fourth Proportional to 73,187.96, 109,676.53 and 43,131.29

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Solution

The fourth proportional to 73,187.96, 109,676.53 and 43,131.29 is: 64,634.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,187.96 : 109,676.53 = 43,131.29 : x
  2. Step 2: Convert to fraction form
    73,187.96/109,676.53 = 43,131.29/x
  3. Step 3: Cross multiply
    73,187.96x = 109,676.53 × 43,131.29
  4. Step 4: Simplify right side
    73,187.96x = 4,730,489,727.16
  5. Step 5: Solve for x
    x = 4,730,489,727.16/73,187.96
  6. Step 6: Final answer
    x = 64,634.81

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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.