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Finding the Fourth Proportional to 324,185.92, 486,341.92 and 124,491.64

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Solution

The fourth proportional to 324,185.92, 486,341.92 and 124,491.64 is: 186,761.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,185.92 : 486,341.92 = 124,491.64 : x
  2. Step 2: Convert to fraction form
    324,185.92/486,341.92 = 124,491.64/x
  3. Step 3: Cross multiply
    324,185.92x = 486,341.92 × 124,491.64
  4. Step 4: Simplify right side
    324,185.92x = 60,545,503,221.55
  5. Step 5: Solve for x
    x = 60,545,503,221.55/324,185.92
  6. Step 6: Final answer
    x = 186,761.67

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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.