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Finding the Fourth Proportional to 208,600.92, 312,944.94 and 68,348.52

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Solution

The fourth proportional to 208,600.92, 312,944.94 and 68,348.52 is: 102,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,600.92 : 312,944.94 = 68,348.52 : x
  2. Step 2: Convert to fraction form
    208,600.92/312,944.94 = 68,348.52/x
  3. Step 3: Cross multiply
    208,600.92x = 312,944.94 × 68,348.52
  4. Step 4: Simplify right side
    208,600.92x = 21,389,323,490.49
  5. Step 5: Solve for x
    x = 21,389,323,490.49/208,600.92
  6. Step 6: Final answer
    x = 102,537.05

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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.