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Finding the Fourth Proportional to 108,564.75, 162,934.61 and 55,989.27

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Solution

The fourth proportional to 108,564.75, 162,934.61 and 55,989.27 is: 84,029.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,564.75 : 162,934.61 = 55,989.27 : x
  2. Step 2: Convert to fraction form
    108,564.75/162,934.61 = 55,989.27/x
  3. Step 3: Cross multiply
    108,564.75x = 162,934.61 × 55,989.27
  4. Step 4: Simplify right side
    108,564.75x = 9,122,589,591.69
  5. Step 5: Solve for x
    x = 9,122,589,591.69/108,564.75
  6. Step 6: Final answer
    x = 84,029.02

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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.