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Finding the Fourth Proportional to 109,198.96, 150,693.84 and 61,452.72

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Solution

The fourth proportional to 109,198.96, 150,693.84 and 61,452.72 is: 84,804.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,198.96 : 150,693.84 = 61,452.72 : x
  2. Step 2: Convert to fraction form
    109,198.96/150,693.84 = 61,452.72/x
  3. Step 3: Cross multiply
    109,198.96x = 150,693.84 × 61,452.72
  4. Step 4: Simplify right side
    109,198.96x = 9,260,546,355.24
  5. Step 5: Solve for x
    x = 9,260,546,355.24/109,198.96
  6. Step 6: Final answer
    x = 84,804.35

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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.