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Finding the Fourth Proportional to 266,888.46, 400,315.41 and 100,672.14

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Solution

The fourth proportional to 266,888.46, 400,315.41 and 100,672.14 is: 151,001.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,888.46 : 400,315.41 = 100,672.14 : x
  2. Step 2: Convert to fraction form
    266,888.46/400,315.41 = 100,672.14/x
  3. Step 3: Cross multiply
    266,888.46x = 400,315.41 × 100,672.14
  4. Step 4: Simplify right side
    266,888.46x = 40,300,608,999.68
  5. Step 5: Solve for x
    x = 40,300,608,999.68/266,888.46
  6. Step 6: Final answer
    x = 151,001.69

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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.