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Finding the Fourth Proportional to 168,163, 231,933.66 and 107,739.24

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Solution

The fourth proportional to 168,163, 231,933.66 and 107,739.24 is: 148,596.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,163 : 231,933.66 = 107,739.24 : x
  2. Step 2: Convert to fraction form
    168,163/231,933.66 = 107,739.24/x
  3. Step 3: Cross multiply
    168,163x = 231,933.66 × 107,739.24
  4. Step 4: Simplify right side
    168,163x = 24,988,356,258.82
  5. Step 5: Solve for x
    x = 24,988,356,258.82/168,163
  6. Step 6: Final answer
    x = 148,596.04

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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.