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Finding the Fourth Proportional to 45,378.84, 68,068.28 and 14,216.52

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Solution

The fourth proportional to 45,378.84, 68,068.28 and 14,216.52 is: 21,324.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,378.84 : 68,068.28 = 14,216.52 : x
  2. Step 2: Convert to fraction form
    45,378.84/68,068.28 = 14,216.52/x
  3. Step 3: Cross multiply
    45,378.84x = 68,068.28 × 14,216.52
  4. Step 4: Simplify right side
    45,378.84x = 967,694,063.99
  5. Step 5: Solve for x
    x = 967,694,063.99/45,378.84
  6. Step 6: Final answer
    x = 21,324.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.