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Finding the Fourth Proportional to 79,636.92, 109,894.96 and 43,826.02

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Solution

The fourth proportional to 79,636.92, 109,894.96 and 43,826.02 is: 60,477.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,636.92 : 109,894.96 = 43,826.02 : x
  2. Step 2: Convert to fraction form
    79,636.92/109,894.96 = 43,826.02/x
  3. Step 3: Cross multiply
    79,636.92x = 109,894.96 × 43,826.02
  4. Step 4: Simplify right side
    79,636.92x = 4,816,258,714.86
  5. Step 5: Solve for x
    x = 4,816,258,714.86/79,636.92
  6. Step 6: Final answer
    x = 60,477.71

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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.