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Finding the Fourth Proportional to 67,974.92, 101,798.32 and 40,879.34

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Solution

The fourth proportional to 67,974.92, 101,798.32 and 40,879.34 is: 61,220.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,974.92 : 101,798.32 = 40,879.34 : x
  2. Step 2: Convert to fraction form
    67,974.92/101,798.32 = 40,879.34/x
  3. Step 3: Cross multiply
    67,974.92x = 101,798.32 × 40,879.34
  4. Step 4: Simplify right side
    67,974.92x = 4,161,448,134.71
  5. Step 5: Solve for x
    x = 4,161,448,134.71/67,974.92
  6. Step 6: Final answer
    x = 61,220.35

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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.