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Finding the Fourth Proportional to 206,157.93, 308,972.62 and 179,392.69

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Solution

The fourth proportional to 206,157.93, 308,972.62 and 179,392.69 is: 268,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,157.93 : 308,972.62 = 179,392.69 : x
  2. Step 2: Convert to fraction form
    206,157.93/308,972.62 = 179,392.69/x
  3. Step 3: Cross multiply
    206,157.93x = 308,972.62 × 179,392.69
  4. Step 4: Simplify right side
    206,157.93x = 55,427,429,438.15
  5. Step 5: Solve for x
    x = 55,427,429,438.15/206,157.93
  6. Step 6: Final answer
    x = 268,859.07

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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.