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Finding the Fourth Proportional to 132,482.96, 198,676.36 and 72,555.96

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Solution

The fourth proportional to 132,482.96, 198,676.36 and 72,555.96 is: 108,807.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,482.96 : 198,676.36 = 72,555.96 : x
  2. Step 2: Convert to fraction form
    132,482.96/198,676.36 = 72,555.96/x
  3. Step 3: Cross multiply
    132,482.96x = 198,676.36 × 72,555.96
  4. Step 4: Simplify right side
    132,482.96x = 14,415,153,847.72
  5. Step 5: Solve for x
    x = 14,415,153,847.72/132,482.96
  6. Step 6: Final answer
    x = 108,807.61

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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.