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Finding the Fourth Proportional to 132,727.50, 183,163.96 and 73,111.50

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Solution

The fourth proportional to 132,727.50, 183,163.96 and 73,111.50 is: 100,893.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,727.50 : 183,163.96 = 73,111.50 : x
  2. Step 2: Convert to fraction form
    132,727.50/183,163.96 = 73,111.50/x
  3. Step 3: Cross multiply
    132,727.50x = 183,163.96 × 73,111.50
  4. Step 4: Simplify right side
    132,727.50x = 13,391,391,861.54
  5. Step 5: Solve for x
    x = 13,391,391,861.54/132,727.50
  6. Step 6: Final answer
    x = 100,893.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.