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Finding the Fourth Proportional to 79,790.54, 110,070.48 and 60,894.86

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Solution

The fourth proportional to 79,790.54, 110,070.48 and 60,894.86 is: 84,004.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,790.54 : 110,070.48 = 60,894.86 : x
  2. Step 2: Convert to fraction form
    79,790.54/110,070.48 = 60,894.86/x
  3. Step 3: Cross multiply
    79,790.54x = 110,070.48 × 60,894.86
  4. Step 4: Simplify right side
    79,790.54x = 6,702,726,469.73
  5. Step 5: Solve for x
    x = 6,702,726,469.73/79,790.54
  6. Step 6: Final answer
    x = 84,004.02

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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.