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Finding the Fourth Proportional to 76,183.63, 105,098.50 and 49,334.79

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Solution

The fourth proportional to 76,183.63, 105,098.50 and 49,334.79 is: 68,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,183.63 : 105,098.50 = 49,334.79 : x
  2. Step 2: Convert to fraction form
    76,183.63/105,098.50 = 49,334.79/x
  3. Step 3: Cross multiply
    76,183.63x = 105,098.50 × 49,334.79
  4. Step 4: Simplify right side
    76,183.63x = 5,185,012,426.82
  5. Step 5: Solve for x
    x = 5,185,012,426.82/76,183.63
  6. Step 6: Final answer
    x = 68,059.40

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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.