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Finding the Fourth Proportional to 197,958.10, 297,002.31 and 131,659.06

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Solution

The fourth proportional to 197,958.10, 297,002.31 and 131,659.06 is: 197,531.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,958.10 : 297,002.31 = 131,659.06 : x
  2. Step 2: Convert to fraction form
    197,958.10/297,002.31 = 131,659.06/x
  3. Step 3: Cross multiply
    197,958.10x = 297,002.31 × 131,659.06
  4. Step 4: Simplify right side
    197,958.10x = 39,103,044,952.43
  5. Step 5: Solve for x
    x = 39,103,044,952.43/197,958.10
  6. Step 6: Final answer
    x = 197,531.93

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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.