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Finding the Fourth Proportional to 107,553.88, 161,151.40 and 75,912.08

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Solution

The fourth proportional to 107,553.88, 161,151.40 and 75,912.08 is: 113,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,553.88 : 161,151.40 = 75,912.08 : x
  2. Step 2: Convert to fraction form
    107,553.88/161,151.40 = 75,912.08/x
  3. Step 3: Cross multiply
    107,553.88x = 161,151.40 × 75,912.08
  4. Step 4: Simplify right side
    107,553.88x = 12,233,337,968.91
  5. Step 5: Solve for x
    x = 12,233,337,968.91/107,553.88
  6. Step 6: Final answer
    x = 113,741.48

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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.