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Finding the Fourth Proportional to 132,562.62, 198,520.74 and 100,938.60

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Solution

The fourth proportional to 132,562.62, 198,520.74 and 100,938.60 is: 151,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,562.62 : 198,520.74 = 100,938.60 : x
  2. Step 2: Convert to fraction form
    132,562.62/198,520.74 = 100,938.60/x
  3. Step 3: Cross multiply
    132,562.62x = 198,520.74 × 100,938.60
  4. Step 4: Simplify right side
    132,562.62x = 20,038,405,566.56
  5. Step 5: Solve for x
    x = 20,038,405,566.56/132,562.62
  6. Step 6: Final answer
    x = 151,161.81

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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.