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Finding the Fourth Proportional to 451,138.75, 676,655.46 and 181,256.01

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Solution

The fourth proportional to 451,138.75, 676,655.46 and 181,256.01 is: 271,862.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,138.75 : 676,655.46 = 181,256.01 : x
  2. Step 2: Convert to fraction form
    451,138.75/676,655.46 = 181,256.01/x
  3. Step 3: Cross multiply
    451,138.75x = 676,655.46 × 181,256.01
  4. Step 4: Simplify right side
    451,138.75x = 122,647,869,609.67
  5. Step 5: Solve for x
    x = 122,647,869,609.67/451,138.75
  6. Step 6: Final answer
    x = 271,862.86

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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.