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Finding the Fourth Proportional to 198,661.74, 297,990.09 and 48,903.90

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Solution

The fourth proportional to 198,661.74, 297,990.09 and 48,903.90 is: 73,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,661.74 : 297,990.09 = 48,903.90 : x
  2. Step 2: Convert to fraction form
    198,661.74/297,990.09 = 48,903.90/x
  3. Step 3: Cross multiply
    198,661.74x = 297,990.09 × 48,903.90
  4. Step 4: Simplify right side
    198,661.74x = 14,572,877,562.35
  5. Step 5: Solve for x
    x = 14,572,877,562.35/198,661.74
  6. Step 6: Final answer
    x = 73,355.23

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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.