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Finding the Fourth Proportional to 168,404.70, 252,607.05 and 162,499.80

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Solution

The fourth proportional to 168,404.70, 252,607.05 and 162,499.80 is: 243,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,404.70 : 252,607.05 = 162,499.80 : x
  2. Step 2: Convert to fraction form
    168,404.70/252,607.05 = 162,499.80/x
  3. Step 3: Cross multiply
    168,404.70x = 252,607.05 × 162,499.80
  4. Step 4: Simplify right side
    168,404.70x = 41,048,595,103.59
  5. Step 5: Solve for x
    x = 41,048,595,103.59/168,404.70
  6. Step 6: Final answer
    x = 243,749.70

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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.