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Finding the Fourth Proportional to 368,450.67, 552,676.14 and 131,779.20

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Solution

The fourth proportional to 368,450.67, 552,676.14 and 131,779.20 is: 197,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,450.67 : 552,676.14 = 131,779.20 : x
  2. Step 2: Convert to fraction form
    368,450.67/552,676.14 = 131,779.20/x
  3. Step 3: Cross multiply
    368,450.67x = 552,676.14 × 131,779.20
  4. Step 4: Simplify right side
    368,450.67x = 72,831,219,588.29
  5. Step 5: Solve for x
    x = 72,831,219,588.29/368,450.67
  6. Step 6: Final answer
    x = 197,668.85

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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.