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Finding the Fourth Proportional to 288,563.68, 398,224.92 and 161,247.52

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Solution

The fourth proportional to 288,563.68, 398,224.92 and 161,247.52 is: 222,525.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,563.68 : 398,224.92 = 161,247.52 : x
  2. Step 2: Convert to fraction form
    288,563.68/398,224.92 = 161,247.52/x
  3. Step 3: Cross multiply
    288,563.68x = 398,224.92 × 161,247.52
  4. Step 4: Simplify right side
    288,563.68x = 64,212,780,752.20
  5. Step 5: Solve for x
    x = 64,212,780,752.20/288,563.68
  6. Step 6: Final answer
    x = 222,525.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.