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Finding the Fourth Proportional to 439,486.98, 659,296.26 and 159,069.84

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Solution

The fourth proportional to 439,486.98, 659,296.26 and 159,069.84 is: 238,628.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,486.98 : 659,296.26 = 159,069.84 : x
  2. Step 2: Convert to fraction form
    439,486.98/659,296.26 = 159,069.84/x
  3. Step 3: Cross multiply
    439,486.98x = 659,296.26 × 159,069.84
  4. Step 4: Simplify right side
    439,486.98x = 104,874,150,590.80
  5. Step 5: Solve for x
    x = 104,874,150,590.80/439,486.98
  6. Step 6: Final answer
    x = 238,628.57

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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.