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Finding the Fourth Proportional to 92,609.16, 138,947.04 and 36,418.11

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Solution

The fourth proportional to 92,609.16, 138,947.04 and 36,418.11 is: 54,640.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,609.16 : 138,947.04 = 36,418.11 : x
  2. Step 2: Convert to fraction form
    92,609.16/138,947.04 = 36,418.11/x
  3. Step 3: Cross multiply
    92,609.16x = 138,947.04 × 36,418.11
  4. Step 4: Simplify right side
    92,609.16x = 5,060,188,586.89
  5. Step 5: Solve for x
    x = 5,060,188,586.89/92,609.16
  6. Step 6: Final answer
    x = 54,640.26

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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.