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Finding the Fourth Proportional to 107,759.80, 161,639.70 and 41,202.10

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Solution

The fourth proportional to 107,759.80, 161,639.70 and 41,202.10 is: 61,803.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,759.80 : 161,639.70 = 41,202.10 : x
  2. Step 2: Convert to fraction form
    107,759.80/161,639.70 = 41,202.10/x
  3. Step 3: Cross multiply
    107,759.80x = 161,639.70 × 41,202.10
  4. Step 4: Simplify right side
    107,759.80x = 6,659,895,083.37
  5. Step 5: Solve for x
    x = 6,659,895,083.37/107,759.80
  6. Step 6: Final answer
    x = 61,803.15

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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.