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Finding the Fourth Proportional to 351,433.06, 527,144.86 and 85,195.88

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Solution

The fourth proportional to 351,433.06, 527,144.86 and 85,195.88 is: 127,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,433.06 : 527,144.86 = 85,195.88 : x
  2. Step 2: Convert to fraction form
    351,433.06/527,144.86 = 85,195.88/x
  3. Step 3: Cross multiply
    351,433.06x = 527,144.86 × 85,195.88
  4. Step 4: Simplify right side
    351,433.06x = 44,910,570,235.18
  5. Step 5: Solve for x
    x = 44,910,570,235.18/351,433.06
  6. Step 6: Final answer
    x = 127,792.67

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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.