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Finding the Fourth Proportional to 384,930.96, 577,359.27 and 118,619.97

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Solution

The fourth proportional to 384,930.96, 577,359.27 and 118,619.97 is: 177,918.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,930.96 : 577,359.27 = 118,619.97 : x
  2. Step 2: Convert to fraction form
    384,930.96/577,359.27 = 118,619.97/x
  3. Step 3: Cross multiply
    384,930.96x = 577,359.27 × 118,619.97
  4. Step 4: Simplify right side
    384,930.96x = 68,486,339,286.62
  5. Step 5: Solve for x
    x = 68,486,339,286.62/384,930.96
  6. Step 6: Final answer
    x = 177,918.50

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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.