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Finding the Fourth Proportional to 76,183.75, 105,098.69 and 49,334.91

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Solution

The fourth proportional to 76,183.75, 105,098.69 and 49,334.91 is: 68,059.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,183.75 : 105,098.69 = 49,334.91 : x
  2. Step 2: Convert to fraction form
    76,183.75/105,098.69 = 49,334.91/x
  3. Step 3: Cross multiply
    76,183.75x = 105,098.69 × 49,334.91
  4. Step 4: Simplify right side
    76,183.75x = 5,185,034,412.27
  5. Step 5: Solve for x
    x = 5,185,034,412.27/76,183.75
  6. Step 6: Final answer
    x = 68,059.59

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1.5x scale

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.