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Finding the Fourth Proportional to 165,896.72, 248,697.72 and 64,671.44

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Solution

The fourth proportional to 165,896.72, 248,697.72 and 64,671.44 is: 96,949.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,896.72 : 248,697.72 = 64,671.44 : x
  2. Step 2: Convert to fraction form
    165,896.72/248,697.72 = 64,671.44/x
  3. Step 3: Cross multiply
    165,896.72x = 248,697.72 × 64,671.44
  4. Step 4: Simplify right side
    165,896.72x = 16,083,639,677.12
  5. Step 5: Solve for x
    x = 16,083,639,677.12/165,896.72
  6. Step 6: Final answer
    x = 96,949.71

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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.