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Finding the Fourth Proportional to 88,636.64, 132,642.90 and 55,372.37

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Solution

The fourth proportional to 88,636.64, 132,642.90 and 55,372.37 is: 82,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,636.64 : 132,642.90 = 55,372.37 : x
  2. Step 2: Convert to fraction form
    88,636.64/132,642.90 = 55,372.37/x
  3. Step 3: Cross multiply
    88,636.64x = 132,642.90 × 55,372.37
  4. Step 4: Simplify right side
    88,636.64x = 7,344,751,073.46
  5. Step 5: Solve for x
    x = 7,344,751,073.46/88,636.64
  6. Step 6: Final answer
    x = 82,863.60

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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.