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Finding the Fourth Proportional to 253,770.50, 350,217.99 and 139,049.36

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Solution

The fourth proportional to 253,770.50, 350,217.99 and 139,049.36 is: 191,896.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,770.50 : 350,217.99 = 139,049.36 : x
  2. Step 2: Convert to fraction form
    253,770.50/350,217.99 = 139,049.36/x
  3. Step 3: Cross multiply
    253,770.50x = 350,217.99 × 139,049.36
  4. Step 4: Simplify right side
    253,770.50x = 48,697,587,369.99
  5. Step 5: Solve for x
    x = 48,697,587,369.99/253,770.50
  6. Step 6: Final answer
    x = 191,896.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.