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Finding the Fourth Proportional to 101,593.44, 152,419.32 and 66,489.66

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Solution

The fourth proportional to 101,593.44, 152,419.32 and 66,489.66 is: 99,753.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,593.44 : 152,419.32 = 66,489.66 : x
  2. Step 2: Convert to fraction form
    101,593.44/152,419.32 = 66,489.66/x
  3. Step 3: Cross multiply
    101,593.44x = 152,419.32 × 66,489.66
  4. Step 4: Simplify right side
    101,593.44x = 10,134,308,764.23
  5. Step 5: Solve for x
    x = 10,134,308,764.23/101,593.44
  6. Step 6: Final answer
    x = 99,753.57

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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.