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Finding the Fourth Proportional to 352,905.73, 487,012.99 and 191,760.77

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Solution

The fourth proportional to 352,905.73, 487,012.99 and 191,760.77 is: 264,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,905.73 : 487,012.99 = 191,760.77 : x
  2. Step 2: Convert to fraction form
    352,905.73/487,012.99 = 191,760.77/x
  3. Step 3: Cross multiply
    352,905.73x = 487,012.99 × 191,760.77
  4. Step 4: Simplify right side
    352,905.73x = 93,389,986,998.02
  5. Step 5: Solve for x
    x = 93,389,986,998.02/352,905.73
  6. Step 6: Final answer
    x = 264,631.54

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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.