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Finding the Fourth Proportional to 66,204.99, 99,251.55 and 28,736.73

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Solution

The fourth proportional to 66,204.99, 99,251.55 and 28,736.73 is: 43,080.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,204.99 : 99,251.55 = 28,736.73 : x
  2. Step 2: Convert to fraction form
    66,204.99/99,251.55 = 28,736.73/x
  3. Step 3: Cross multiply
    66,204.99x = 99,251.55 × 28,736.73
  4. Step 4: Simplify right side
    66,204.99x = 2,852,164,994.43
  5. Step 5: Solve for x
    x = 2,852,164,994.43/66,204.99
  6. Step 6: Final answer
    x = 43,080.82

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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.