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Finding the Fourth Proportional to 449,562.20, 674,256.90 and 134,029.40

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Solution

The fourth proportional to 449,562.20, 674,256.90 and 134,029.40 is: 201,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,562.20 : 674,256.90 = 134,029.40 : x
  2. Step 2: Convert to fraction form
    449,562.20/674,256.90 = 134,029.40/x
  3. Step 3: Cross multiply
    449,562.20x = 674,256.90 × 134,029.40
  4. Step 4: Simplify right side
    449,562.20x = 90,370,247,752.86
  5. Step 5: Solve for x
    x = 90,370,247,752.86/449,562.20
  6. Step 6: Final answer
    x = 201,018.34

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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.