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Finding the Fourth Proportional to 69,033.61, 103,384.34 and 39,361.49

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Solution

The fourth proportional to 69,033.61, 103,384.34 and 39,361.49 is: 58,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,033.61 : 103,384.34 = 39,361.49 : x
  2. Step 2: Convert to fraction form
    69,033.61/103,384.34 = 39,361.49/x
  3. Step 3: Cross multiply
    69,033.61x = 103,384.34 × 39,361.49
  4. Step 4: Simplify right side
    69,033.61x = 4,069,360,951.34
  5. Step 5: Solve for x
    x = 4,069,360,951.34/69,033.61
  6. Step 6: Final answer
    x = 58,947.53

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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.