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Finding the Fourth Proportional to 131,446.70, 196,878.45 and 113,950.70

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Solution

The fourth proportional to 131,446.70, 196,878.45 and 113,950.70 is: 170,673.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,446.70 : 196,878.45 = 113,950.70 : x
  2. Step 2: Convert to fraction form
    131,446.70/196,878.45 = 113,950.70/x
  3. Step 3: Cross multiply
    131,446.70x = 196,878.45 × 113,950.70
  4. Step 4: Simplify right side
    131,446.70x = 22,434,437,192.42
  5. Step 5: Solve for x
    x = 22,434,437,192.42/131,446.70
  6. Step 6: Final answer
    x = 170,673.26

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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.