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Finding the Fourth Proportional to 92,553.85, 138,829.15 and 36,399.79

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Solution

The fourth proportional to 92,553.85, 138,829.15 and 36,399.79 is: 54,599.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,553.85 : 138,829.15 = 36,399.79 : x
  2. Step 2: Convert to fraction form
    92,553.85/138,829.15 = 36,399.79/x
  3. Step 3: Cross multiply
    92,553.85x = 138,829.15 × 36,399.79
  4. Step 4: Simplify right side
    92,553.85x = 5,053,351,905.88
  5. Step 5: Solve for x
    x = 5,053,351,905.88/92,553.85
  6. Step 6: Final answer
    x = 54,599.05

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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.