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Finding the Fourth Proportional to 109,879.92, 151,635.19 and 59,578.92

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Solution

The fourth proportional to 109,879.92, 151,635.19 and 59,578.92 is: 82,219.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,879.92 : 151,635.19 = 59,578.92 : x
  2. Step 2: Convert to fraction form
    109,879.92/151,635.19 = 59,578.92/x
  3. Step 3: Cross multiply
    109,879.92x = 151,635.19 × 59,578.92
  4. Step 4: Simplify right side
    109,879.92x = 9,034,260,244.97
  5. Step 5: Solve for x
    x = 9,034,260,244.97/109,879.92
  6. Step 6: Final answer
    x = 82,219.40

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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.