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Finding the Fourth Proportional to 173,485.70, 260,034.15 and 89,213.30

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Solution

The fourth proportional to 173,485.70, 260,034.15 and 89,213.30 is: 133,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,485.70 : 260,034.15 = 89,213.30 : x
  2. Step 2: Convert to fraction form
    173,485.70/260,034.15 = 89,213.30/x
  3. Step 3: Cross multiply
    173,485.70x = 260,034.15 × 89,213.30
  4. Step 4: Simplify right side
    173,485.70x = 23,198,504,634.20
  5. Step 5: Solve for x
    x = 23,198,504,634.20/173,485.70
  6. Step 6: Final answer
    x = 133,719.98

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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.