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Finding the Fourth Proportional to 92,608.85, 138,913.43 and 22,488.16

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Solution

The fourth proportional to 92,608.85, 138,913.43 and 22,488.16 is: 33,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,608.85 : 138,913.43 = 22,488.16 : x
  2. Step 2: Convert to fraction form
    92,608.85/138,913.43 = 22,488.16/x
  3. Step 3: Cross multiply
    92,608.85x = 138,913.43 × 22,488.16
  4. Step 4: Simplify right side
    92,608.85x = 3,123,907,439.99
  5. Step 5: Solve for x
    x = 3,123,907,439.99/92,608.85
  6. Step 6: Final answer
    x = 33,732.28

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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.