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Finding the Fourth Proportional to 168,796.60, 253,022.10 and 98,639.80

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Solution

The fourth proportional to 168,796.60, 253,022.10 and 98,639.80 is: 147,858.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,796.60 : 253,022.10 = 98,639.80 : x
  2. Step 2: Convert to fraction form
    168,796.60/253,022.10 = 98,639.80/x
  3. Step 3: Cross multiply
    168,796.60x = 253,022.10 × 98,639.80
  4. Step 4: Simplify right side
    168,796.60x = 24,958,049,339.58
  5. Step 5: Solve for x
    x = 24,958,049,339.58/168,796.60
  6. Step 6: Final answer
    x = 147,858.72

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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.