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Finding the Fourth Proportional to 88,691.96, 132,922.40 and 36,039.88

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Solution

The fourth proportional to 88,691.96, 132,922.40 and 36,039.88 is: 54,012.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,691.96 : 132,922.40 = 36,039.88 : x
  2. Step 2: Convert to fraction form
    88,691.96/132,922.40 = 36,039.88/x
  3. Step 3: Cross multiply
    88,691.96x = 132,922.40 × 36,039.88
  4. Step 4: Simplify right side
    88,691.96x = 4,790,507,345.31
  5. Step 5: Solve for x
    x = 4,790,507,345.31/88,691.96
  6. Step 6: Final answer
    x = 54,012.87

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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.