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Finding the Fourth Proportional to 73,222.60, 109,792.26 and 28,825.30

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Solution

The fourth proportional to 73,222.60, 109,792.26 and 28,825.30 is: 43,221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,222.60 : 109,792.26 = 28,825.30 : x
  2. Step 2: Convert to fraction form
    73,222.60/109,792.26 = 28,825.30/x
  3. Step 3: Cross multiply
    73,222.60x = 109,792.26 × 28,825.30
  4. Step 4: Simplify right side
    73,222.60x = 3,164,794,832.18
  5. Step 5: Solve for x
    x = 3,164,794,832.18/73,222.60
  6. Step 6: Final answer
    x = 43,221.56

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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.