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Finding the Fourth Proportional to 86,579.02, 129,770.10 and 36,627.94

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Solution

The fourth proportional to 86,579.02, 129,770.10 and 36,627.94 is: 54,900.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,579.02 : 129,770.10 = 36,627.94 : x
  2. Step 2: Convert to fraction form
    86,579.02/129,770.10 = 36,627.94/x
  3. Step 3: Cross multiply
    86,579.02x = 129,770.10 × 36,627.94
  4. Step 4: Simplify right side
    86,579.02x = 4,753,211,436.59
  5. Step 5: Solve for x
    x = 4,753,211,436.59/86,579.02
  6. Step 6: Final answer
    x = 54,900.27

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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.