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Finding the Fourth Proportional to 266,998.64, 400,590.23 and 167,039.76

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Solution

The fourth proportional to 266,998.64, 400,590.23 and 167,039.76 is: 250,617.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,998.64 : 400,590.23 = 167,039.76 : x
  2. Step 2: Convert to fraction form
    266,998.64/400,590.23 = 167,039.76/x
  3. Step 3: Cross multiply
    266,998.64x = 400,590.23 × 167,039.76
  4. Step 4: Simplify right side
    266,998.64x = 66,914,494,080.26
  5. Step 5: Solve for x
    x = 66,914,494,080.26/266,998.64
  6. Step 6: Final answer
    x = 250,617.36

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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.