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Finding the Fourth Proportional to 139,527.36, 192,468.96 and 82,956.96

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Solution

The fourth proportional to 139,527.36, 192,468.96 and 82,956.96 is: 114,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,527.36 : 192,468.96 = 82,956.96 : x
  2. Step 2: Convert to fraction form
    139,527.36/192,468.96 = 82,956.96/x
  3. Step 3: Cross multiply
    139,527.36x = 192,468.96 × 82,956.96
  4. Step 4: Simplify right side
    139,527.36x = 15,966,639,815.96
  5. Step 5: Solve for x
    x = 15,966,639,815.96/139,527.36
  6. Step 6: Final answer
    x = 114,433.76

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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.