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Finding the Fourth Proportional to 73,242.73, 109,563.31 and 58,480.48

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Solution

The fourth proportional to 73,242.73, 109,563.31 and 58,480.48 is: 87,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,242.73 : 109,563.31 = 58,480.48 : x
  2. Step 2: Convert to fraction form
    73,242.73/109,563.31 = 58,480.48/x
  3. Step 3: Cross multiply
    73,242.73x = 109,563.31 × 58,480.48
  4. Step 4: Simplify right side
    73,242.73x = 6,407,314,118.97
  5. Step 5: Solve for x
    x = 6,407,314,118.97/73,242.73
  6. Step 6: Final answer
    x = 87,480.55

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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.