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Finding the Fourth Proportional to 135,663.60, 203,106.60 and 131,775.60

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Solution

The fourth proportional to 135,663.60, 203,106.60 and 131,775.60 is: 197,285.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,663.60 : 203,106.60 = 131,775.60 : x
  2. Step 2: Convert to fraction form
    135,663.60/203,106.60 = 131,775.60/x
  3. Step 3: Cross multiply
    135,663.60x = 203,106.60 × 131,775.60
  4. Step 4: Simplify right side
    135,663.60x = 26,764,494,078.96
  5. Step 5: Solve for x
    x = 26,764,494,078.96/135,663.60
  6. Step 6: Final answer
    x = 197,285.74

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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.