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Finding the Fourth Proportional to 108,644.33, 162,933.14 and 75,125.72

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Solution

The fourth proportional to 108,644.33, 162,933.14 and 75,125.72 is: 112,665.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,644.33 : 162,933.14 = 75,125.72 : x
  2. Step 2: Convert to fraction form
    108,644.33/162,933.14 = 75,125.72/x
  3. Step 3: Cross multiply
    108,644.33x = 162,933.14 × 75,125.72
  4. Step 4: Simplify right side
    108,644.33x = 12,240,469,454.36
  5. Step 5: Solve for x
    x = 12,240,469,454.36/108,644.33
  6. Step 6: Final answer
    x = 112,665.52

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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.