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Finding the Fourth Proportional to 198,615.45, 297,923.31 and 58,472.49

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Solution

The fourth proportional to 198,615.45, 297,923.31 and 58,472.49 is: 87,708.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,615.45 : 297,923.31 = 58,472.49 : x
  2. Step 2: Convert to fraction form
    198,615.45/297,923.31 = 58,472.49/x
  3. Step 3: Cross multiply
    198,615.45x = 297,923.31 × 58,472.49
  4. Step 4: Simplify right side
    198,615.45x = 17,420,317,764.74
  5. Step 5: Solve for x
    x = 17,420,317,764.74/198,615.45
  6. Step 6: Final answer
    x = 87,708.77

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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.