Home / 354,206.43-531,168.69-129,515.67

Finding the Fourth Proportional to 354,206.43, 531,168.69 and 129,515.67

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Solution

The fourth proportional to 354,206.43, 531,168.69 and 129,515.67 is: 194,221.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,206.43 : 531,168.69 = 129,515.67 : x
  2. Step 2: Convert to fraction form
    354,206.43/531,168.69 = 129,515.67/x
  3. Step 3: Cross multiply
    354,206.43x = 531,168.69 × 129,515.67
  4. Step 4: Simplify right side
    354,206.43x = 68,794,668,768.37
  5. Step 5: Solve for x
    x = 68,794,668,768.37/354,206.43
  6. Step 6: Final answer
    x = 194,221.96

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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.