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Finding the Fourth Proportional to 88,644.10, 132,855.43 and 56,969.86

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Solution

The fourth proportional to 88,644.10, 132,855.43 and 56,969.86 is: 85,383.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,644.10 : 132,855.43 = 56,969.86 : x
  2. Step 2: Convert to fraction form
    88,644.10/132,855.43 = 56,969.86/x
  3. Step 3: Cross multiply
    88,644.10x = 132,855.43 × 56,969.86
  4. Step 4: Simplify right side
    88,644.10x = 7,568,755,247.34
  5. Step 5: Solve for x
    x = 7,568,755,247.34/88,644.10
  6. Step 6: Final answer
    x = 85,383.63

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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.