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Finding the Fourth Proportional to 303,563.20, 455,366.90 and 116,574.70

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Solution

The fourth proportional to 303,563.20, 455,366.90 and 116,574.70 is: 174,870.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,563.20 : 455,366.90 = 116,574.70 : x
  2. Step 2: Convert to fraction form
    303,563.20/455,366.90 = 116,574.70/x
  3. Step 3: Cross multiply
    303,563.20x = 455,366.90 × 116,574.70
  4. Step 4: Simplify right side
    303,563.20x = 53,084,259,757.43
  5. Step 5: Solve for x
    x = 53,084,259,757.43/303,563.20
  6. Step 6: Final answer
    x = 174,870.54

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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.