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Finding the Fourth Proportional to 107,998.40, 162,170.40 and 73,092.80

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Solution

The fourth proportional to 107,998.40, 162,170.40 and 73,092.80 is: 109,756.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,998.40 : 162,170.40 = 73,092.80 : x
  2. Step 2: Convert to fraction form
    107,998.40/162,170.40 = 73,092.80/x
  3. Step 3: Cross multiply
    107,998.40x = 162,170.40 × 73,092.80
  4. Step 4: Simplify right side
    107,998.40x = 11,853,488,613.12
  5. Step 5: Solve for x
    x = 11,853,488,613.12/107,998.40
  6. Step 6: Final answer
    x = 109,756.15

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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.