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Finding the Fourth Proportional to 112,591.15, 168,601.03 and 67,584.51

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Solution

The fourth proportional to 112,591.15, 168,601.03 and 67,584.51 is: 101,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,591.15 : 168,601.03 = 67,584.51 : x
  2. Step 2: Convert to fraction form
    112,591.15/168,601.03 = 67,584.51/x
  3. Step 3: Cross multiply
    112,591.15x = 168,601.03 × 67,584.51
  4. Step 4: Simplify right side
    112,591.15x = 11,394,817,829.08
  5. Step 5: Solve for x
    x = 11,394,817,829.08/112,591.15
  6. Step 6: Final answer
    x = 101,205.27

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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.