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Finding the Fourth Proportional to 68,757.24, 102,981.78 and 59,757.24

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Solution

The fourth proportional to 68,757.24, 102,981.78 and 59,757.24 is: 89,501.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,757.24 : 102,981.78 = 59,757.24 : x
  2. Step 2: Convert to fraction form
    68,757.24/102,981.78 = 59,757.24/x
  3. Step 3: Cross multiply
    68,757.24x = 102,981.78 × 59,757.24
  4. Step 4: Simplify right side
    68,757.24x = 6,153,906,943.09
  5. Step 5: Solve for x
    x = 6,153,906,943.09/68,757.24
  6. Step 6: Final answer
    x = 89,501.95

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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.