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Finding the Fourth Proportional to 84,998.40, 127,498.08 and 43,474.56

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Solution

The fourth proportional to 84,998.40, 127,498.08 and 43,474.56 is: 65,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,998.40 : 127,498.08 = 43,474.56 : x
  2. Step 2: Convert to fraction form
    84,998.40/127,498.08 = 43,474.56/x
  3. Step 3: Cross multiply
    84,998.40x = 127,498.08 × 43,474.56
  4. Step 4: Simplify right side
    84,998.40x = 5,542,922,928.84
  5. Step 5: Solve for x
    x = 5,542,922,928.84/84,998.40
  6. Step 6: Final answer
    x = 65,212.09

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1.5x scale

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.