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Finding the Fourth Proportional to 92,606.85, 138,910.43 and 22,486.16

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Solution

The fourth proportional to 92,606.85, 138,910.43 and 22,486.16 is: 33,729.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,606.85 : 138,910.43 = 22,486.16 : x
  2. Step 2: Convert to fraction form
    92,606.85/138,910.43 = 22,486.16/x
  3. Step 3: Cross multiply
    92,606.85x = 138,910.43 × 22,486.16
  4. Step 4: Simplify right side
    92,606.85x = 3,123,562,154.65
  5. Step 5: Solve for x
    x = 3,123,562,154.65/92,606.85
  6. Step 6: Final answer
    x = 33,729.28

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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.