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Finding the Fourth Proportional to 308,344.91, 462,394.71 and 118,699.97

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Solution

The fourth proportional to 308,344.91, 462,394.71 and 118,699.97 is: 178,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,344.91 : 462,394.71 = 118,699.97 : x
  2. Step 2: Convert to fraction form
    308,344.91/462,394.71 = 118,699.97/x
  3. Step 3: Cross multiply
    308,344.91x = 462,394.71 × 118,699.97
  4. Step 4: Simplify right side
    308,344.91x = 54,886,235,893.19
  5. Step 5: Solve for x
    x = 54,886,235,893.19/308,344.91
  6. Step 6: Final answer
    x = 178,002.73

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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.