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Finding the Fourth Proportional to 239,493.94, 359,136.60 and 68,677.90

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Solution

The fourth proportional to 239,493.94, 359,136.60 and 68,677.90 is: 102,986.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,493.94 : 359,136.60 = 68,677.90 : x
  2. Step 2: Convert to fraction form
    239,493.94/359,136.60 = 68,677.90/x
  3. Step 3: Cross multiply
    239,493.94x = 359,136.60 × 68,677.90
  4. Step 4: Simplify right side
    239,493.94x = 24,664,747,501.14
  5. Step 5: Solve for x
    x = 24,664,747,501.14/239,493.94
  6. Step 6: Final answer
    x = 102,986.94

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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.