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Finding the Fourth Proportional to 133,375.10, 200,062.65 and 118,211.90

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Solution

The fourth proportional to 133,375.10, 200,062.65 and 118,211.90 is: 177,317.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,375.10 : 200,062.65 = 118,211.90 : x
  2. Step 2: Convert to fraction form
    133,375.10/200,062.65 = 118,211.90/x
  3. Step 3: Cross multiply
    133,375.10x = 200,062.65 × 118,211.90
  4. Step 4: Simplify right side
    133,375.10x = 23,649,785,975.54
  5. Step 5: Solve for x
    x = 23,649,785,975.54/133,375.10
  6. Step 6: Final answer
    x = 177,317.85

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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.