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Finding the Fourth Proportional to 73,286.88, 109,938.40 and 23,355.36

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Solution

The fourth proportional to 73,286.88, 109,938.40 and 23,355.36 is: 35,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,286.88 : 109,938.40 = 23,355.36 : x
  2. Step 2: Convert to fraction form
    73,286.88/109,938.40 = 23,355.36/x
  3. Step 3: Cross multiply
    73,286.88x = 109,938.40 × 23,355.36
  4. Step 4: Simplify right side
    73,286.88x = 2,567,650,909.82
  5. Step 5: Solve for x
    x = 2,567,650,909.82/73,286.88
  6. Step 6: Final answer
    x = 35,035.61

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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.