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Finding the Fourth Proportional to 316,992.19, 437,494.05 and 196,172.41

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Solution

The fourth proportional to 316,992.19, 437,494.05 and 196,172.41 is: 270,745.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,992.19 : 437,494.05 = 196,172.41 : x
  2. Step 2: Convert to fraction form
    316,992.19/437,494.05 = 196,172.41/x
  3. Step 3: Cross multiply
    316,992.19x = 437,494.05 × 196,172.41
  4. Step 4: Simplify right side
    316,992.19x = 85,824,262,149.16
  5. Step 5: Solve for x
    x = 85,824,262,149.16/316,992.19
  6. Step 6: Final answer
    x = 270,745.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.