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Finding the Fourth Proportional to 363,269.90, 544,907.94 and 126,612.20

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Solution

The fourth proportional to 363,269.90, 544,907.94 and 126,612.20 is: 189,919.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,269.90 : 544,907.94 = 126,612.20 : x
  2. Step 2: Convert to fraction form
    363,269.90/544,907.94 = 126,612.20/x
  3. Step 3: Cross multiply
    363,269.90x = 544,907.94 × 126,612.20
  4. Step 4: Simplify right side
    363,269.90x = 68,991,993,080.87
  5. Step 5: Solve for x
    x = 68,991,993,080.87/363,269.90
  6. Step 6: Final answer
    x = 189,919.38

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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.