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Finding the Fourth Proportional to 131,114.70, 196,380.45 and 113,618.70

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Solution

The fourth proportional to 131,114.70, 196,380.45 and 113,618.70 is: 170,175.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,114.70 : 196,380.45 = 113,618.70 : x
  2. Step 2: Convert to fraction form
    131,114.70/196,380.45 = 113,618.70/x
  3. Step 3: Cross multiply
    131,114.70x = 196,380.45 × 113,618.70
  4. Step 4: Simplify right side
    131,114.70x = 22,312,491,434.42
  5. Step 5: Solve for x
    x = 22,312,491,434.42/131,114.70
  6. Step 6: Final answer
    x = 170,175.36

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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.