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Finding the Fourth Proportional to 133,073.90, 199,610.85 and 131,324.30

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Solution

The fourth proportional to 133,073.90, 199,610.85 and 131,324.30 is: 196,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,073.90 : 199,610.85 = 131,324.30 : x
  2. Step 2: Convert to fraction form
    133,073.90/199,610.85 = 131,324.30/x
  3. Step 3: Cross multiply
    133,073.90x = 199,610.85 × 131,324.30
  4. Step 4: Simplify right side
    133,073.90x = 26,213,755,148.66
  5. Step 5: Solve for x
    x = 26,213,755,148.66/133,073.90
  6. Step 6: Final answer
    x = 196,986.45

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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.