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Finding the Fourth Proportional to 386,796.61, 580,222.86 and 161,930.89

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Solution

The fourth proportional to 386,796.61, 580,222.86 and 161,930.89 is: 242,908.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,796.61 : 580,222.86 = 161,930.89 : x
  2. Step 2: Convert to fraction form
    386,796.61/580,222.86 = 161,930.89/x
  3. Step 3: Cross multiply
    386,796.61x = 580,222.86 × 161,930.89
  4. Step 4: Simplify right side
    386,796.61x = 93,956,004,118.15
  5. Step 5: Solve for x
    x = 93,956,004,118.15/386,796.61
  6. Step 6: Final answer
    x = 242,908.03

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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.