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Finding the Fourth Proportional to 449,758.52, 674,754.63 and 134,215.43

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Solution

The fourth proportional to 449,758.52, 674,754.63 and 134,215.43 is: 201,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,758.52 : 674,754.63 = 134,215.43 : x
  2. Step 2: Convert to fraction form
    449,758.52/674,754.63 = 134,215.43/x
  3. Step 3: Cross multiply
    449,758.52x = 674,754.63 × 134,215.43
  4. Step 4: Simplify right side
    449,758.52x = 90,562,483,105.84
  5. Step 5: Solve for x
    x = 90,562,483,105.84/449,758.52
  6. Step 6: Final answer
    x = 201,358.01

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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.