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Finding the Fourth Proportional to 266,962.20, 400,443.30 and 167,429.40

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Solution

The fourth proportional to 266,962.20, 400,443.30 and 167,429.40 is: 251,144.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,962.20 : 400,443.30 = 167,429.40 : x
  2. Step 2: Convert to fraction form
    266,962.20/400,443.30 = 167,429.40/x
  3. Step 3: Cross multiply
    266,962.20x = 400,443.30 × 167,429.40
  4. Step 4: Simplify right side
    266,962.20x = 67,045,981,453.02
  5. Step 5: Solve for x
    x = 67,045,981,453.02/266,962.20
  6. Step 6: Final answer
    x = 251,144.10

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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.