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Finding the Fourth Proportional to 107,350.80, 161,026.20 and 90,743.27

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Solution

The fourth proportional to 107,350.80, 161,026.20 and 90,743.27 is: 136,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,350.80 : 161,026.20 = 90,743.27 : x
  2. Step 2: Convert to fraction form
    107,350.80/161,026.20 = 90,743.27/x
  3. Step 3: Cross multiply
    107,350.80x = 161,026.20 × 90,743.27
  4. Step 4: Simplify right side
    107,350.80x = 14,612,043,138.54
  5. Step 5: Solve for x
    x = 14,612,043,138.54/107,350.80
  6. Step 6: Final answer
    x = 136,114.90

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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.