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Finding the Fourth Proportional to 85,302.86, 127,850.51 and 60,350.10

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Solution

The fourth proportional to 85,302.86, 127,850.51 and 60,350.10 is: 90,451.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,302.86 : 127,850.51 = 60,350.10 : x
  2. Step 2: Convert to fraction form
    85,302.86/127,850.51 = 60,350.10/x
  3. Step 3: Cross multiply
    85,302.86x = 127,850.51 × 60,350.10
  4. Step 4: Simplify right side
    85,302.86x = 7,715,790,819.85
  5. Step 5: Solve for x
    x = 7,715,790,819.85/85,302.86
  6. Step 6: Final answer
    x = 90,451.73

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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.