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Finding the Fourth Proportional to 303,734.85, 455,596.11 and 79,090.31

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Solution

The fourth proportional to 303,734.85, 455,596.11 and 79,090.31 is: 118,633.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,734.85 : 455,596.11 = 79,090.31 : x
  2. Step 2: Convert to fraction form
    303,734.85/455,596.11 = 79,090.31/x
  3. Step 3: Cross multiply
    303,734.85x = 455,596.11 × 79,090.31
  4. Step 4: Simplify right side
    303,734.85x = 36,033,236,150.96
  5. Step 5: Solve for x
    x = 36,033,236,150.96/303,734.85
  6. Step 6: Final answer
    x = 118,633.86

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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.