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Finding the Fourth Proportional to 449,151.60, 673,986.60 and 168,697.20

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Solution

The fourth proportional to 449,151.60, 673,986.60 and 168,697.20 is: 253,143.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,151.60 : 673,986.60 = 168,697.20 : x
  2. Step 2: Convert to fraction form
    449,151.60/673,986.60 = 168,697.20/x
  3. Step 3: Cross multiply
    449,151.60x = 673,986.60 × 168,697.20
  4. Step 4: Simplify right side
    449,151.60x = 113,699,652,257.52
  5. Step 5: Solve for x
    x = 113,699,652,257.52/449,151.60
  6. Step 6: Final answer
    x = 253,143.15

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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.