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Finding the Fourth Proportional to 70,924.08, 97,879.60 and 39,092.90

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Solution

The fourth proportional to 70,924.08, 97,879.60 and 39,092.90 is: 53,950.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,924.08 : 97,879.60 = 39,092.90 : x
  2. Step 2: Convert to fraction form
    70,924.08/97,879.60 = 39,092.90/x
  3. Step 3: Cross multiply
    70,924.08x = 97,879.60 × 39,092.90
  4. Step 4: Simplify right side
    70,924.08x = 3,826,397,414.84
  5. Step 5: Solve for x
    x = 3,826,397,414.84/70,924.08
  6. Step 6: Final answer
    x = 53,950.61

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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.