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Finding the Fourth Proportional to 321,503.83, 482,250.88 and 134,515.33

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Solution

The fourth proportional to 321,503.83, 482,250.88 and 134,515.33 is: 201,770.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,503.83 : 482,250.88 = 134,515.33 : x
  2. Step 2: Convert to fraction form
    321,503.83/482,250.88 = 134,515.33/x
  3. Step 3: Cross multiply
    321,503.83x = 482,250.88 × 134,515.33
  4. Step 4: Simplify right side
    321,503.83x = 64,870,136,265.99
  5. Step 5: Solve for x
    x = 64,870,136,265.99/321,503.83
  6. Step 6: Final answer
    x = 201,770.96

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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.