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Finding the Fourth Proportional to 168,186, 252,313.62 and 68,345.98

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Solution

The fourth proportional to 168,186, 252,313.62 and 68,345.98 is: 102,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,186 : 252,313.62 = 68,345.98 : x
  2. Step 2: Convert to fraction form
    168,186/252,313.62 = 68,345.98/x
  3. Step 3: Cross multiply
    168,186x = 252,313.62 × 68,345.98
  4. Step 4: Simplify right side
    168,186x = 17,244,621,626.25
  5. Step 5: Solve for x
    x = 17,244,621,626.25/168,186
  6. Step 6: Final answer
    x = 102,533.04

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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.