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Finding the Fourth Proportional to 68,981.77, 103,450.78 and 29,528.29

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Solution

The fourth proportional to 68,981.77, 103,450.78 and 29,528.29 is: 44,283.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,981.77 : 103,450.78 = 29,528.29 : x
  2. Step 2: Convert to fraction form
    68,981.77/103,450.78 = 29,528.29/x
  3. Step 3: Cross multiply
    68,981.77x = 103,450.78 × 29,528.29
  4. Step 4: Simplify right side
    68,981.77x = 3,054,724,632.57
  5. Step 5: Solve for x
    x = 3,054,724,632.57/68,981.77
  6. Step 6: Final answer
    x = 44,283.07

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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.