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Finding the Fourth Proportional to 313,676.41, 470,250.11 and 136,049.63

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Solution

The fourth proportional to 313,676.41, 470,250.11 and 136,049.63 is: 203,959.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,676.41 : 470,250.11 = 136,049.63 : x
  2. Step 2: Convert to fraction form
    313,676.41/470,250.11 = 136,049.63/x
  3. Step 3: Cross multiply
    313,676.41x = 470,250.11 × 136,049.63
  4. Step 4: Simplify right side
    313,676.41x = 63,977,353,968.34
  5. Step 5: Solve for x
    x = 63,977,353,968.34/313,676.41
  6. Step 6: Final answer
    x = 203,959.73

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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.