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Finding the Fourth Proportional to 263,617.44, 395,423.10 and 105,843.12

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Solution

The fourth proportional to 263,617.44, 395,423.10 and 105,843.12 is: 158,763.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,617.44 : 395,423.10 = 105,843.12 : x
  2. Step 2: Convert to fraction form
    263,617.44/395,423.10 = 105,843.12/x
  3. Step 3: Cross multiply
    263,617.44x = 395,423.10 × 105,843.12
  4. Step 4: Simplify right side
    263,617.44x = 41,852,814,624.07
  5. Step 5: Solve for x
    x = 41,852,814,624.07/263,617.44
  6. Step 6: Final answer
    x = 158,763.45

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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.