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Finding the Fourth Proportional to 297,749.42, 446,668.77 and 87,362.54

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Solution

The fourth proportional to 297,749.42, 446,668.77 and 87,362.54 is: 131,056.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,749.42 : 446,668.77 = 87,362.54 : x
  2. Step 2: Convert to fraction form
    297,749.42/446,668.77 = 87,362.54/x
  3. Step 3: Cross multiply
    297,749.42x = 446,668.77 × 87,362.54
  4. Step 4: Simplify right side
    297,749.42x = 39,022,118,285.88
  5. Step 5: Solve for x
    x = 39,022,118,285.88/297,749.42
  6. Step 6: Final answer
    x = 131,056.91

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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.