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Finding the Fourth Proportional to 303,895.94, 455,844.11 and 79,255.80

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Solution

The fourth proportional to 303,895.94, 455,844.11 and 79,255.80 is: 118,883.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,895.94 : 455,844.11 = 79,255.80 : x
  2. Step 2: Convert to fraction form
    303,895.94/455,844.11 = 79,255.80/x
  3. Step 3: Cross multiply
    303,895.94x = 455,844.11 × 79,255.80
  4. Step 4: Simplify right side
    303,895.94x = 36,128,289,217.06
  5. Step 5: Solve for x
    x = 36,128,289,217.06/303,895.94
  6. Step 6: Final answer
    x = 118,883.75

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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.