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Finding the Fourth Proportional to 198,615.92, 297,923.78 and 58,374.52

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Solution

The fourth proportional to 198,615.92, 297,923.78 and 58,374.52 is: 87,561.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,615.92 : 297,923.78 = 58,374.52 : x
  2. Step 2: Convert to fraction form
    198,615.92/297,923.78 = 58,374.52/x
  3. Step 3: Cross multiply
    198,615.92x = 297,923.78 × 58,374.52
  4. Step 4: Simplify right side
    198,615.92x = 17,391,157,654.09
  5. Step 5: Solve for x
    x = 17,391,157,654.09/198,615.92
  6. Step 6: Final answer
    x = 87,561.75

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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.