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Finding the Fourth Proportional to 132,073.20, 197,818.20 and 108,745.20

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Solution

The fourth proportional to 132,073.20, 197,818.20 and 108,745.20 is: 162,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,073.20 : 197,818.20 = 108,745.20 : x
  2. Step 2: Convert to fraction form
    132,073.20/197,818.20 = 108,745.20/x
  3. Step 3: Cross multiply
    132,073.20x = 197,818.20 × 108,745.20
  4. Step 4: Simplify right side
    132,073.20x = 21,511,779,722.64
  5. Step 5: Solve for x
    x = 21,511,779,722.64/132,073.20
  6. Step 6: Final answer
    x = 162,877.71

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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.