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Finding the Fourth Proportional to 150,028.38, 225,042.84 and 61,281.90

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Solution

The fourth proportional to 150,028.38, 225,042.84 and 61,281.90 is: 91,922.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,028.38 : 225,042.84 = 61,281.90 : x
  2. Step 2: Convert to fraction form
    150,028.38/225,042.84 = 61,281.90/x
  3. Step 3: Cross multiply
    150,028.38x = 225,042.84 × 61,281.90
  4. Step 4: Simplify right side
    150,028.38x = 13,791,052,816.60
  5. Step 5: Solve for x
    x = 13,791,052,816.60/150,028.38
  6. Step 6: Final answer
    x = 91,922.96

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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.