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Finding the Fourth Proportional to 274,394.92, 411,550.76 and 74,731.03

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Solution

The fourth proportional to 274,394.92, 411,550.76 and 74,731.03 is: 112,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,394.92 : 411,550.76 = 74,731.03 : x
  2. Step 2: Convert to fraction form
    274,394.92/411,550.76 = 74,731.03/x
  3. Step 3: Cross multiply
    274,394.92x = 411,550.76 × 74,731.03
  4. Step 4: Simplify right side
    274,394.92x = 30,755,612,192.08
  5. Step 5: Solve for x
    x = 30,755,612,192.08/274,394.92
  6. Step 6: Final answer
    x = 112,085.21

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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.