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Finding the Fourth Proportional to 132,520.40, 198,889.40 and 131,483.60

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Solution

The fourth proportional to 132,520.40, 198,889.40 and 131,483.60 is: 197,333.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,520.40 : 198,889.40 = 131,483.60 : x
  2. Step 2: Convert to fraction form
    132,520.40/198,889.40 = 131,483.60/x
  3. Step 3: Cross multiply
    132,520.40x = 198,889.40 × 131,483.60
  4. Step 4: Simplify right side
    132,520.40x = 26,150,694,313.84
  5. Step 5: Solve for x
    x = 26,150,694,313.84/132,520.40
  6. Step 6: Final answer
    x = 197,333.35

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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.