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Finding the Fourth Proportional to 95,905.80, 143,858.70 and 84,241.80

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Solution

The fourth proportional to 95,905.80, 143,858.70 and 84,241.80 is: 126,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,905.80 : 143,858.70 = 84,241.80 : x
  2. Step 2: Convert to fraction form
    95,905.80/143,858.70 = 84,241.80/x
  3. Step 3: Cross multiply
    95,905.80x = 143,858.70 × 84,241.80
  4. Step 4: Simplify right side
    95,905.80x = 12,118,915,833.66
  5. Step 5: Solve for x
    x = 12,118,915,833.66/95,905.80
  6. Step 6: Final answer
    x = 126,362.70

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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.