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Finding the Fourth Proportional to 266,985.98, 400,085.31 and 252,026.90

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Solution

The fourth proportional to 266,985.98, 400,085.31 and 252,026.90 is: 377,668.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,985.98 : 400,085.31 = 252,026.90 : x
  2. Step 2: Convert to fraction form
    266,985.98/400,085.31 = 252,026.90/x
  3. Step 3: Cross multiply
    266,985.98x = 400,085.31 × 252,026.90
  4. Step 4: Simplify right side
    266,985.98x = 100,832,260,414.84
  5. Step 5: Solve for x
    x = 100,832,260,414.84/266,985.98
  6. Step 6: Final answer
    x = 377,668.75

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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.