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Finding the Fourth Proportional to 446,774.92, 670,129.60 and 131,256.52

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Solution

The fourth proportional to 446,774.92, 670,129.60 and 131,256.52 is: 196,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,774.92 : 670,129.60 = 131,256.52 : x
  2. Step 2: Convert to fraction form
    446,774.92/670,129.60 = 131,256.52/x
  3. Step 3: Cross multiply
    446,774.92x = 670,129.60 × 131,256.52
  4. Step 4: Simplify right side
    446,774.92x = 87,958,879,244.99
  5. Step 5: Solve for x
    x = 87,958,879,244.99/446,774.92
  6. Step 6: Final answer
    x = 196,875.15

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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.