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Finding the Fourth Proportional to 118,250.56, 177,375.84 and 68,968

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Solution

The fourth proportional to 118,250.56, 177,375.84 and 68,968 is: 103,452

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,250.56 : 177,375.84 = 68,968 : x
  2. Step 2: Convert to fraction form
    118,250.56/177,375.84 = 68,968/x
  3. Step 3: Cross multiply
    118,250.56x = 177,375.84 × 68,968
  4. Step 4: Simplify right side
    118,250.56x = 12,233,256,933.12
  5. Step 5: Solve for x
    x = 12,233,256,933.12/118,250.56
  6. Step 6: Final answer
    x = 103,452

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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.