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Finding the Fourth Proportional to 269,114.89, 403,532.16 and 126,921.98

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Solution

The fourth proportional to 269,114.89, 403,532.16 and 126,921.98 is: 190,316.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,114.89 : 403,532.16 = 126,921.98 : x
  2. Step 2: Convert to fraction form
    269,114.89/403,532.16 = 126,921.98/x
  3. Step 3: Cross multiply
    269,114.89x = 403,532.16 × 126,921.98
  4. Step 4: Simplify right side
    269,114.89x = 51,217,100,740.88
  5. Step 5: Solve for x
    x = 51,217,100,740.88/269,114.89
  6. Step 6: Final answer
    x = 190,316.86

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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.