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Finding the Fourth Proportional to 353,811.25, 530,716.88 and 104,512.69

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Solution

The fourth proportional to 353,811.25, 530,716.88 and 104,512.69 is: 156,769.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,811.25 : 530,716.88 = 104,512.69 : x
  2. Step 2: Convert to fraction form
    353,811.25/530,716.88 = 104,512.69/x
  3. Step 3: Cross multiply
    353,811.25x = 530,716.88 × 104,512.69
  4. Step 4: Simplify right side
    353,811.25x = 55,466,648,757.21
  5. Step 5: Solve for x
    x = 55,466,648,757.21/353,811.25
  6. Step 6: Final answer
    x = 156,769.04

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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.