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Finding the Fourth Proportional to 132,726, 183,161.89 and 73,110

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Solution

The fourth proportional to 132,726, 183,161.89 and 73,110 is: 100,891.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,726 : 183,161.89 = 73,110 : x
  2. Step 2: Convert to fraction form
    132,726/183,161.89 = 73,110/x
  3. Step 3: Cross multiply
    132,726x = 183,161.89 × 73,110
  4. Step 4: Simplify right side
    132,726x = 13,390,965,777.90
  5. Step 5: Solve for x
    x = 13,390,965,777.90/132,726
  6. Step 6: Final answer
    x = 100,891.81

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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.