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Finding the Fourth Proportional to 118,136.40, 177,143.40 and 35,019.60

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Solution

The fourth proportional to 118,136.40, 177,143.40 and 35,019.60 is: 52,511.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,136.40 : 177,143.40 = 35,019.60 : x
  2. Step 2: Convert to fraction form
    118,136.40/177,143.40 = 35,019.60/x
  3. Step 3: Cross multiply
    118,136.40x = 177,143.40 × 35,019.60
  4. Step 4: Simplify right side
    118,136.40x = 6,203,491,010.64
  5. Step 5: Solve for x
    x = 6,203,491,010.64/118,136.40
  6. Step 6: Final answer
    x = 52,511.26

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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.