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Finding the Fourth Proportional to 263,045.60, 394,276.80 and 113,260.40

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Solution

The fourth proportional to 263,045.60, 394,276.80 and 113,260.40 is: 169,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,045.60 : 394,276.80 = 113,260.40 : x
  2. Step 2: Convert to fraction form
    263,045.60/394,276.80 = 113,260.40/x
  3. Step 3: Cross multiply
    263,045.60x = 394,276.80 × 113,260.40
  4. Step 4: Simplify right side
    263,045.60x = 44,655,948,078.72
  5. Step 5: Solve for x
    x = 44,655,948,078.72/263,045.60
  6. Step 6: Final answer
    x = 169,765.04

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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.