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Finding the Fourth Proportional to 192,748.96, 289,000.08 and 92,709.94

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Solution

The fourth proportional to 192,748.96, 289,000.08 and 92,709.94 is: 139,005.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,748.96 : 289,000.08 = 92,709.94 : x
  2. Step 2: Convert to fraction form
    192,748.96/289,000.08 = 92,709.94/x
  3. Step 3: Cross multiply
    192,748.96x = 289,000.08 × 92,709.94
  4. Step 4: Simplify right side
    192,748.96x = 26,793,180,076.80
  5. Step 5: Solve for x
    x = 26,793,180,076.80/192,748.96
  6. Step 6: Final answer
    x = 139,005.58

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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.