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Finding the Fourth Proportional to 198,606.88, 297,928.67 and 56,455.12

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Solution

The fourth proportional to 198,606.88, 297,928.67 and 56,455.12 is: 84,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,606.88 : 297,928.67 = 56,455.12 : x
  2. Step 2: Convert to fraction form
    198,606.88/297,928.67 = 56,455.12/x
  3. Step 3: Cross multiply
    198,606.88x = 297,928.67 × 56,455.12
  4. Step 4: Simplify right side
    198,606.88x = 16,819,598,816.29
  5. Step 5: Solve for x
    x = 16,819,598,816.29/198,606.88
  6. Step 6: Final answer
    x = 84,687.90

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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.