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Finding the Fourth Proportional to 108,122.89, 162,213.94 and 52,009.94

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Solution

The fourth proportional to 108,122.89, 162,213.94 and 52,009.94 is: 78,029.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,122.89 : 162,213.94 = 52,009.94 : x
  2. Step 2: Convert to fraction form
    108,122.89/162,213.94 = 52,009.94/x
  3. Step 3: Cross multiply
    108,122.89x = 162,213.94 × 52,009.94
  4. Step 4: Simplify right side
    108,122.89x = 8,436,737,286.56
  5. Step 5: Solve for x
    x = 8,436,737,286.56/108,122.89
  6. Step 6: Final answer
    x = 78,029.15

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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.