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Finding the Fourth Proportional to 92,685.99, 138,935.50 and 36,504.39

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Solution

The fourth proportional to 92,685.99, 138,935.50 and 36,504.39 is: 54,719.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,685.99 : 138,935.50 = 36,504.39 : x
  2. Step 2: Convert to fraction form
    92,685.99/138,935.50 = 36,504.39/x
  3. Step 3: Cross multiply
    92,685.99x = 138,935.50 × 36,504.39
  4. Step 4: Simplify right side
    92,685.99x = 5,071,755,676.85
  5. Step 5: Solve for x
    x = 5,071,755,676.85/92,685.99
  6. Step 6: Final answer
    x = 54,719.77

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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.