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Finding the Fourth Proportional to 288,754.72, 398,530.72 and 167,966.04

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Solution

The fourth proportional to 288,754.72, 398,530.72 and 167,966.04 is: 231,821.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,754.72 : 398,530.72 = 167,966.04 : x
  2. Step 2: Convert to fraction form
    288,754.72/398,530.72 = 167,966.04/x
  3. Step 3: Cross multiply
    288,754.72x = 398,530.72 × 167,966.04
  4. Step 4: Simplify right side
    288,754.72x = 66,939,626,856.75
  5. Step 5: Solve for x
    x = 66,939,626,856.75/288,754.72
  6. Step 6: Final answer
    x = 231,821.76

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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.