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Finding the Fourth Proportional to 150,081.21, 225,122.19 and 61,334.70

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Solution

The fourth proportional to 150,081.21, 225,122.19 and 61,334.70 is: 92,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,081.21 : 225,122.19 = 61,334.70 : x
  2. Step 2: Convert to fraction form
    150,081.21/225,122.19 = 61,334.70/x
  3. Step 3: Cross multiply
    150,081.21x = 225,122.19 × 61,334.70
  4. Step 4: Simplify right side
    150,081.21x = 13,807,801,986.99
  5. Step 5: Solve for x
    x = 13,807,801,986.99/150,081.21
  6. Step 6: Final answer
    x = 92,002.20

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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.