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Finding the Fourth Proportional to 92,620.66, 138,937.11 and 36,456.34

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Solution

The fourth proportional to 92,620.66, 138,937.11 and 36,456.34 is: 54,686.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,620.66 : 138,937.11 = 36,456.34 : x
  2. Step 2: Convert to fraction form
    92,620.66/138,937.11 = 36,456.34/x
  3. Step 3: Cross multiply
    92,620.66x = 138,937.11 × 36,456.34
  4. Step 4: Simplify right side
    92,620.66x = 5,065,138,520.78
  5. Step 5: Solve for x
    x = 5,065,138,520.78/92,620.66
  6. Step 6: Final answer
    x = 54,686.92

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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.