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Finding the Fourth Proportional to 173,912.60, 260,523.30 and 99,954.20

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Solution

The fourth proportional to 173,912.60, 260,523.30 and 99,954.20 is: 149,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,912.60 : 260,523.30 = 99,954.20 : x
  2. Step 2: Convert to fraction form
    173,912.60/260,523.30 = 99,954.20/x
  3. Step 3: Cross multiply
    173,912.60x = 260,523.30 × 99,954.20
  4. Step 4: Simplify right side
    173,912.60x = 26,040,398,032.86
  5. Step 5: Solve for x
    x = 26,040,398,032.86/173,912.60
  6. Step 6: Final answer
    x = 149,732.67

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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.