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Finding the Fourth Proportional to 118,163.84, 177,193.90 and 44,240

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Solution

The fourth proportional to 118,163.84, 177,193.90 and 44,240 is: 66,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,163.84 : 177,193.90 = 44,240 : x
  2. Step 2: Convert to fraction form
    118,163.84/177,193.90 = 44,240/x
  3. Step 3: Cross multiply
    118,163.84x = 177,193.90 × 44,240
  4. Step 4: Simplify right side
    118,163.84x = 7,839,058,136
  5. Step 5: Solve for x
    x = 7,839,058,136/118,163.84
  6. Step 6: Final answer
    x = 66,340.58

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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.