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Finding the Fourth Proportional to 101,609.64, 140,158.98 and 61,297.56

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Solution

The fourth proportional to 101,609.64, 140,158.98 and 61,297.56 is: 84,553.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,609.64 : 140,158.98 = 61,297.56 : x
  2. Step 2: Convert to fraction form
    101,609.64/140,158.98 = 61,297.56/x
  3. Step 3: Cross multiply
    101,609.64x = 140,158.98 × 61,297.56
  4. Step 4: Simplify right side
    101,609.64x = 8,591,403,486.09
  5. Step 5: Solve for x
    x = 8,591,403,486.09/101,609.64
  6. Step 6: Final answer
    x = 84,553.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.