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Finding the Fourth Proportional to 168,562.87, 232,399.70 and 120,219.92

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Solution

The fourth proportional to 168,562.87, 232,399.70 and 120,219.92 is: 165,748.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,562.87 : 232,399.70 = 120,219.92 : x
  2. Step 2: Convert to fraction form
    168,562.87/232,399.70 = 120,219.92/x
  3. Step 3: Cross multiply
    168,562.87x = 232,399.70 × 120,219.92
  4. Step 4: Simplify right side
    168,562.87x = 27,939,071,578.93
  5. Step 5: Solve for x
    x = 27,939,071,578.93/168,562.87
  6. Step 6: Final answer
    x = 165,748.67

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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.