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Finding the Fourth Proportional to 99,286.63, 137,016.36 and 53,964.63

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Solution

The fourth proportional to 99,286.63, 137,016.36 and 53,964.63 is: 74,471.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,286.63 : 137,016.36 = 53,964.63 : x
  2. Step 2: Convert to fraction form
    99,286.63/137,016.36 = 53,964.63/x
  3. Step 3: Cross multiply
    99,286.63x = 137,016.36 × 53,964.63
  4. Step 4: Simplify right side
    99,286.63x = 7,394,037,171.35
  5. Step 5: Solve for x
    x = 7,394,037,171.35/99,286.63
  6. Step 6: Final answer
    x = 74,471.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.