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Finding the Fourth Proportional to 103,836.80, 155,524.80 and 41,475.20

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Solution

The fourth proportional to 103,836.80, 155,524.80 and 41,475.20 is: 62,120.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,836.80 : 155,524.80 = 41,475.20 : x
  2. Step 2: Convert to fraction form
    103,836.80/155,524.80 = 41,475.20/x
  3. Step 3: Cross multiply
    103,836.80x = 155,524.80 × 41,475.20
  4. Step 4: Simplify right side
    103,836.80x = 6,450,422,184.96
  5. Step 5: Solve for x
    x = 6,450,422,184.96/103,836.80
  6. Step 6: Final answer
    x = 62,120.77

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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.