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Finding the Fourth Proportional to 84,759.84, 116,974.08 and 48,960.72

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Solution

The fourth proportional to 84,759.84, 116,974.08 and 48,960.72 is: 67,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,759.84 : 116,974.08 = 48,960.72 : x
  2. Step 2: Convert to fraction form
    84,759.84/116,974.08 = 48,960.72/x
  3. Step 3: Cross multiply
    84,759.84x = 116,974.08 × 48,960.72
  4. Step 4: Simplify right side
    84,759.84x = 5,727,135,178.14
  5. Step 5: Solve for x
    x = 5,727,135,178.14/84,759.84
  6. Step 6: Final answer
    x = 67,568.97

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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.