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Finding the Fourth Proportional to 69,135.41, 103,764.93 and 35,424.43

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Solution

The fourth proportional to 69,135.41, 103,764.93 and 35,424.43 is: 53,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,135.41 : 103,764.93 = 35,424.43 : x
  2. Step 2: Convert to fraction form
    69,135.41/103,764.93 = 35,424.43/x
  3. Step 3: Cross multiply
    69,135.41x = 103,764.93 × 35,424.43
  4. Step 4: Simplify right side
    69,135.41x = 3,675,813,499.24
  5. Step 5: Solve for x
    x = 3,675,813,499.24/69,135.41
  6. Step 6: Final answer
    x = 53,168.32

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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.