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Finding the Fourth Proportional to 70,536.92, 105,821.48 and 30,562.54

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Solution

The fourth proportional to 70,536.92, 105,821.48 and 30,562.54 is: 45,850.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,536.92 : 105,821.48 = 30,562.54 : x
  2. Step 2: Convert to fraction form
    70,536.92/105,821.48 = 30,562.54/x
  3. Step 3: Cross multiply
    70,536.92x = 105,821.48 × 30,562.54
  4. Step 4: Simplify right side
    70,536.92x = 3,234,173,027.21
  5. Step 5: Solve for x
    x = 3,234,173,027.21/70,536.92
  6. Step 6: Final answer
    x = 45,850.79

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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.