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Finding the Fourth Proportional to 112,635.77, 168,667.92 and 67,629.33

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Solution

The fourth proportional to 112,635.77, 168,667.92 and 67,629.33 is: 101,272.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,635.77 : 168,667.92 = 67,629.33 : x
  2. Step 2: Convert to fraction form
    112,635.77/168,667.92 = 67,629.33/x
  3. Step 3: Cross multiply
    112,635.77x = 168,667.92 × 67,629.33
  4. Step 4: Simplify right side
    112,635.77x = 11,406,898,422.09
  5. Step 5: Solve for x
    x = 11,406,898,422.09/112,635.77
  6. Step 6: Final answer
    x = 101,272.44

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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.