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Finding the Fourth Proportional to 73,121.96, 109,669.07 and 35,644.34

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Solution

The fourth proportional to 73,121.96, 109,669.07 and 35,644.34 is: 53,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,121.96 : 109,669.07 = 35,644.34 : x
  2. Step 2: Convert to fraction form
    73,121.96/109,669.07 = 35,644.34/x
  3. Step 3: Cross multiply
    73,121.96x = 109,669.07 × 35,644.34
  4. Step 4: Simplify right side
    73,121.96x = 3,909,081,408.32
  5. Step 5: Solve for x
    x = 3,909,081,408.32/73,121.96
  6. Step 6: Final answer
    x = 53,459.75

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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.