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Finding the Fourth Proportional to 303,855.36, 455,761.17 and 133,094.40

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Solution

The fourth proportional to 303,855.36, 455,761.17 and 133,094.40 is: 199,632.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,855.36 : 455,761.17 = 133,094.40 : x
  2. Step 2: Convert to fraction form
    303,855.36/455,761.17 = 133,094.40/x
  3. Step 3: Cross multiply
    303,855.36x = 455,761.17 × 133,094.40
  4. Step 4: Simplify right side
    303,855.36x = 60,659,259,464.45
  5. Step 5: Solve for x
    x = 60,659,259,464.45/303,855.36
  6. Step 6: Final answer
    x = 199,632.02

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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.