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Finding the Fourth Proportional to 263,061.60, 394,446.60 and 113,276.40

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Solution

The fourth proportional to 263,061.60, 394,446.60 and 113,276.40 is: 169,851.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,061.60 : 394,446.60 = 113,276.40 : x
  2. Step 2: Convert to fraction form
    263,061.60/394,446.60 = 113,276.40/x
  3. Step 3: Cross multiply
    263,061.60x = 394,446.60 × 113,276.40
  4. Step 4: Simplify right side
    263,061.60x = 44,681,490,840.24
  5. Step 5: Solve for x
    x = 44,681,490,840.24/263,061.60
  6. Step 6: Final answer
    x = 169,851.82

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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.