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Finding the Fourth Proportional to 231,678.80, 347,508.03 and 63,198.57

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Solution

The fourth proportional to 231,678.80, 347,508.03 and 63,198.57 is: 94,795.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,678.80 : 347,508.03 = 63,198.57 : x
  2. Step 2: Convert to fraction form
    231,678.80/347,508.03 = 63,198.57/x
  3. Step 3: Cross multiply
    231,678.80x = 347,508.03 × 63,198.57
  4. Step 4: Simplify right side
    231,678.80x = 21,962,008,989.82
  5. Step 5: Solve for x
    x = 21,962,008,989.82/231,678.80
  6. Step 6: Final answer
    x = 94,795.07

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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.