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Finding the Fourth Proportional to 288,118.25, 397,581.36 and 167,240.03

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Solution

The fourth proportional to 288,118.25, 397,581.36 and 167,240.03 is: 230,778.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,118.25 : 397,581.36 = 167,240.03 : x
  2. Step 2: Convert to fraction form
    288,118.25/397,581.36 = 167,240.03/x
  3. Step 3: Cross multiply
    288,118.25x = 397,581.36 × 167,240.03
  4. Step 4: Simplify right side
    288,118.25x = 66,491,516,585.93
  5. Step 5: Solve for x
    x = 66,491,516,585.93/288,118.25
  6. Step 6: Final answer
    x = 230,778.57

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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.