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Finding the Fourth Proportional to 168,197.80, 252,296.68 and 79,460.28

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Solution

The fourth proportional to 168,197.80, 252,296.68 and 79,460.28 is: 119,190.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,197.80 : 252,296.68 = 79,460.28 : x
  2. Step 2: Convert to fraction form
    168,197.80/252,296.68 = 79,460.28/x
  3. Step 3: Cross multiply
    168,197.80x = 252,296.68 × 79,460.28
  4. Step 4: Simplify right side
    168,197.80x = 20,047,564,835.87
  5. Step 5: Solve for x
    x = 20,047,564,835.87/168,197.80
  6. Step 6: Final answer
    x = 119,190.41

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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.