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Finding the Fourth Proportional to 68,515.84, 102,744.78 and 24,131.80

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Solution

The fourth proportional to 68,515.84, 102,744.78 and 24,131.80 is: 36,187.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,515.84 : 102,744.78 = 24,131.80 : x
  2. Step 2: Convert to fraction form
    68,515.84/102,744.78 = 24,131.80/x
  3. Step 3: Cross multiply
    68,515.84x = 102,744.78 × 24,131.80
  4. Step 4: Simplify right side
    68,515.84x = 2,479,416,482.00
  5. Step 5: Solve for x
    x = 2,479,416,482.00/68,515.84
  6. Step 6: Final answer
    x = 36,187.49

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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.