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Finding the Fourth Proportional to 72,146.90, 108,217.92 and 32,676.41

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Solution

The fourth proportional to 72,146.90, 108,217.92 and 32,676.41 is: 49,013.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,146.90 : 108,217.92 = 32,676.41 : x
  2. Step 2: Convert to fraction form
    72,146.90/108,217.92 = 32,676.41/x
  3. Step 3: Cross multiply
    72,146.90x = 108,217.92 × 32,676.41
  4. Step 4: Simplify right side
    72,146.90x = 3,536,173,516.35
  5. Step 5: Solve for x
    x = 3,536,173,516.35/72,146.90
  6. Step 6: Final answer
    x = 49,013.52

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1.5x scale

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.