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Finding the Fourth Proportional to 192,048.55, 287,910.14 and 79,658.62

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Solution

The fourth proportional to 192,048.55, 287,910.14 and 79,658.62 is: 119,420.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,048.55 : 287,910.14 = 79,658.62 : x
  2. Step 2: Convert to fraction form
    192,048.55/287,910.14 = 79,658.62/x
  3. Step 3: Cross multiply
    192,048.55x = 287,910.14 × 79,658.62
  4. Step 4: Simplify right side
    192,048.55x = 22,934,523,915.78
  5. Step 5: Solve for x
    x = 22,934,523,915.78/192,048.55
  6. Step 6: Final answer
    x = 119,420.45

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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.