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Finding the Fourth Proportional to 135,106.80, 202,660.20 and 36,610.80

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Solution

The fourth proportional to 135,106.80, 202,660.20 and 36,610.80 is: 54,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,106.80 : 202,660.20 = 36,610.80 : x
  2. Step 2: Convert to fraction form
    135,106.80/202,660.20 = 36,610.80/x
  3. Step 3: Cross multiply
    135,106.80x = 202,660.20 × 36,610.80
  4. Step 4: Simplify right side
    135,106.80x = 7,419,552,050.16
  5. Step 5: Solve for x
    x = 7,419,552,050.16/135,106.80
  6. Step 6: Final answer
    x = 54,916.20

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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.