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Finding the Fourth Proportional to 107,999.40, 162,171.90 and 73,093.80

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Solution

The fourth proportional to 107,999.40, 162,171.90 and 73,093.80 is: 109,757.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,999.40 : 162,171.90 = 73,093.80 : x
  2. Step 2: Convert to fraction form
    107,999.40/162,171.90 = 73,093.80/x
  3. Step 3: Cross multiply
    107,999.40x = 162,171.90 × 73,093.80
  4. Step 4: Simplify right side
    107,999.40x = 11,853,760,424.22
  5. Step 5: Solve for x
    x = 11,853,760,424.22/107,999.40
  6. Step 6: Final answer
    x = 109,757.65

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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.