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Finding the Fourth Proportional to 99,957.72, 149,934.20 and 32,489.67

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Solution

The fourth proportional to 99,957.72, 149,934.20 and 32,489.67 is: 48,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,957.72 : 149,934.20 = 32,489.67 : x
  2. Step 2: Convert to fraction form
    99,957.72/149,934.20 = 32,489.67/x
  3. Step 3: Cross multiply
    99,957.72x = 149,934.20 × 32,489.67
  4. Step 4: Simplify right side
    99,957.72x = 4,871,312,517.27
  5. Step 5: Solve for x
    x = 4,871,312,517.27/99,957.72
  6. Step 6: Final answer
    x = 48,733.73

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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.