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Finding the Fourth Proportional to 137,161.55, 205,676.72 and 58,232.72

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Solution

The fourth proportional to 137,161.55, 205,676.72 and 58,232.72 is: 87,321.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,161.55 : 205,676.72 = 58,232.72 : x
  2. Step 2: Convert to fraction form
    137,161.55/205,676.72 = 58,232.72/x
  3. Step 3: Cross multiply
    137,161.55x = 205,676.72 × 58,232.72
  4. Step 4: Simplify right side
    137,161.55x = 11,977,115,287.68
  5. Step 5: Solve for x
    x = 11,977,115,287.68/137,161.55
  6. Step 6: Final answer
    x = 87,321.23

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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.