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Finding the Fourth Proportional to 269,161.67, 403,805.01 and 91,670.22

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Solution

The fourth proportional to 269,161.67, 403,805.01 and 91,670.22 is: 137,526.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,161.67 : 403,805.01 = 91,670.22 : x
  2. Step 2: Convert to fraction form
    269,161.67/403,805.01 = 91,670.22/x
  3. Step 3: Cross multiply
    269,161.67x = 403,805.01 × 91,670.22
  4. Step 4: Simplify right side
    269,161.67x = 37,016,894,103.80
  5. Step 5: Solve for x
    x = 37,016,894,103.80/269,161.67
  6. Step 6: Final answer
    x = 137,526.62

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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.