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Finding the Fourth Proportional to 268,901.75, 403,348.98 and 91,532.41

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Solution

The fourth proportional to 268,901.75, 403,348.98 and 91,532.41 is: 137,297.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,901.75 : 403,348.98 = 91,532.41 : x
  2. Step 2: Convert to fraction form
    268,901.75/403,348.98 = 91,532.41/x
  3. Step 3: Cross multiply
    268,901.75x = 403,348.98 × 91,532.41
  4. Step 4: Simplify right side
    268,901.75x = 36,919,503,545.32
  5. Step 5: Solve for x
    x = 36,919,503,545.32/268,901.75
  6. Step 6: Final answer
    x = 137,297.37

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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.