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Finding the Fourth Proportional to 132,165.71, 182,383.79 and 71,735.05

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Solution

The fourth proportional to 132,165.71, 182,383.79 and 71,735.05 is: 98,991.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,165.71 : 182,383.79 = 71,735.05 : x
  2. Step 2: Convert to fraction form
    132,165.71/182,383.79 = 71,735.05/x
  3. Step 3: Cross multiply
    132,165.71x = 182,383.79 × 71,735.05
  4. Step 4: Simplify right side
    132,165.71x = 13,083,309,480.20
  5. Step 5: Solve for x
    x = 13,083,309,480.20/132,165.71
  6. Step 6: Final answer
    x = 98,991.71

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1.5x scale

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.