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Finding the Fourth Proportional to 198,658.50, 297,790.92 and 93,288.84

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Solution

The fourth proportional to 198,658.50, 297,790.92 and 93,288.84 is: 139,840.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,658.50 : 297,790.92 = 93,288.84 : x
  2. Step 2: Convert to fraction form
    198,658.50/297,790.92 = 93,288.84/x
  3. Step 3: Cross multiply
    198,658.50x = 297,790.92 × 93,288.84
  4. Step 4: Simplify right side
    198,658.50x = 27,780,569,489.33
  5. Step 5: Solve for x
    x = 27,780,569,489.33/198,658.50
  6. Step 6: Final answer
    x = 139,840.83

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1.5x scale

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.