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Finding the Fourth Proportional to 303,629.80, 454,715.70 and 163,078.60

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Solution

The fourth proportional to 303,629.80, 454,715.70 and 163,078.60 is: 244,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,629.80 : 454,715.70 = 163,078.60 : x
  2. Step 2: Convert to fraction form
    303,629.80/454,715.70 = 163,078.60/x
  3. Step 3: Cross multiply
    303,629.80x = 454,715.70 × 163,078.60
  4. Step 4: Simplify right side
    303,629.80x = 74,154,399,754.02
  5. Step 5: Solve for x
    x = 74,154,399,754.02/303,629.80
  6. Step 6: Final answer
    x = 244,226.36

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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.