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Finding the Fourth Proportional to 136,676.92, 205,014.16 and 43,182.68

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Solution

The fourth proportional to 136,676.92, 205,014.16 and 43,182.68 is: 64,773.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,676.92 : 205,014.16 = 43,182.68 : x
  2. Step 2: Convert to fraction form
    136,676.92/205,014.16 = 43,182.68/x
  3. Step 3: Cross multiply
    136,676.92x = 205,014.16 × 43,182.68
  4. Step 4: Simplify right side
    136,676.92x = 8,853,060,866.75
  5. Step 5: Solve for x
    x = 8,853,060,866.75/136,676.92
  6. Step 6: Final answer
    x = 64,773.63

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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.