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Finding the Fourth Proportional to 266,052.20, 398,422.20 and 176,822.60

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Solution

The fourth proportional to 266,052.20, 398,422.20 and 176,822.60 is: 264,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,052.20 : 398,422.20 = 176,822.60 : x
  2. Step 2: Convert to fraction form
    266,052.20/398,422.20 = 176,822.60/x
  3. Step 3: Cross multiply
    266,052.20x = 398,422.20 × 176,822.60
  4. Step 4: Simplify right side
    266,052.20x = 70,450,049,301.72
  5. Step 5: Solve for x
    x = 70,450,049,301.72/266,052.20
  6. Step 6: Final answer
    x = 264,797.85

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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.