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Finding the Fourth Proportional to 188,912.40, 283,282.20 and 83,677.20

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Solution

The fourth proportional to 188,912.40, 283,282.20 and 83,677.20 is: 125,477.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,912.40 : 283,282.20 = 83,677.20 : x
  2. Step 2: Convert to fraction form
    188,912.40/283,282.20 = 83,677.20/x
  3. Step 3: Cross multiply
    188,912.40x = 283,282.20 × 83,677.20
  4. Step 4: Simplify right side
    188,912.40x = 23,704,261,305.84
  5. Step 5: Solve for x
    x = 23,704,261,305.84/188,912.40
  6. Step 6: Final answer
    x = 125,477.53

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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.