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Finding the Fourth Proportional to 89,839.92, 134,798.88 and 34,474.80

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Solution

The fourth proportional to 89,839.92, 134,798.88 and 34,474.80 is: 51,727.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,839.92 : 134,798.88 = 34,474.80 : x
  2. Step 2: Convert to fraction form
    89,839.92/134,798.88 = 34,474.80/x
  3. Step 3: Cross multiply
    89,839.92x = 134,798.88 × 34,474.80
  4. Step 4: Simplify right side
    89,839.92x = 4,647,164,428.22
  5. Step 5: Solve for x
    x = 4,647,164,428.22/89,839.92
  6. Step 6: Final answer
    x = 51,727.17

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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.