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Finding the Fourth Proportional to 69,243.77, 103,828.75 and 35,930.30

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Solution

The fourth proportional to 69,243.77, 103,828.75 and 35,930.30 is: 53,876.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,243.77 : 103,828.75 = 35,930.30 : x
  2. Step 2: Convert to fraction form
    69,243.77/103,828.75 = 35,930.30/x
  3. Step 3: Cross multiply
    69,243.77x = 103,828.75 × 35,930.30
  4. Step 4: Simplify right side
    69,243.77x = 3,730,597,527.16
  5. Step 5: Solve for x
    x = 3,730,597,527.16/69,243.77
  6. Step 6: Final answer
    x = 53,876.29

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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.