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Finding the Fourth Proportional to 449,809.92, 674,736.48 and 134,291.52

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Solution

The fourth proportional to 449,809.92, 674,736.48 and 134,291.52 is: 201,443.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,809.92 : 674,736.48 = 134,291.52 : x
  2. Step 2: Convert to fraction form
    449,809.92/674,736.48 = 134,291.52/x
  3. Step 3: Cross multiply
    449,809.92x = 674,736.48 × 134,291.52
  4. Step 4: Simplify right side
    449,809.92x = 90,611,387,498.65
  5. Step 5: Solve for x
    x = 90,611,387,498.65/449,809.92
  6. Step 6: Final answer
    x = 201,443.73

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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.