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Finding the Fourth Proportional to 263,448.40, 395,191.08 and 105,676.86

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Solution

The fourth proportional to 263,448.40, 395,191.08 and 105,676.86 is: 158,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,448.40 : 395,191.08 = 105,676.86 : x
  2. Step 2: Convert to fraction form
    263,448.40/395,191.08 = 105,676.86/x
  3. Step 3: Cross multiply
    263,448.40x = 395,191.08 × 105,676.86
  4. Step 4: Simplify right side
    263,448.40x = 41,762,552,434.41
  5. Step 5: Solve for x
    x = 41,762,552,434.41/263,448.40
  6. Step 6: Final answer
    x = 158,522.70

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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.