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Finding the Fourth Proportional to 107,361.88, 161,050.74 and 28,474.36

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Solution

The fourth proportional to 107,361.88, 161,050.74 and 28,474.36 is: 42,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,361.88 : 161,050.74 = 28,474.36 : x
  2. Step 2: Convert to fraction form
    107,361.88/161,050.74 = 28,474.36/x
  3. Step 3: Cross multiply
    107,361.88x = 161,050.74 × 28,474.36
  4. Step 4: Simplify right side
    107,361.88x = 4,585,816,749.03
  5. Step 5: Solve for x
    x = 4,585,816,749.03/107,361.88
  6. Step 6: Final answer
    x = 42,713.64

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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.