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Finding the Fourth Proportional to 263,178.05, 394,763.40 and 63,496.76

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Solution

The fourth proportional to 263,178.05, 394,763.40 and 63,496.76 is: 95,244.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,178.05 : 394,763.40 = 63,496.76 : x
  2. Step 2: Convert to fraction form
    263,178.05/394,763.40 = 63,496.76/x
  3. Step 3: Cross multiply
    263,178.05x = 394,763.40 × 63,496.76
  4. Step 4: Simplify right side
    263,178.05x = 25,066,194,892.77
  5. Step 5: Solve for x
    x = 25,066,194,892.77/263,178.05
  6. Step 6: Final answer
    x = 95,244.25

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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.