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Finding the Fourth Proportional to 416,629.92, 624,943.92 and 101,086.56

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Solution

The fourth proportional to 416,629.92, 624,943.92 and 101,086.56 is: 151,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,629.92 : 624,943.92 = 101,086.56 : x
  2. Step 2: Convert to fraction form
    416,629.92/624,943.92 = 101,086.56/x
  3. Step 3: Cross multiply
    416,629.92x = 624,943.92 × 101,086.56
  4. Step 4: Simplify right side
    416,629.92x = 63,173,431,065.72
  5. Step 5: Solve for x
    x = 63,173,431,065.72/416,629.92
  6. Step 6: Final answer
    x = 151,629.61

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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.