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Finding the Fourth Proportional to 112,667.77, 168,990.70 and 29,561.77

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Solution

The fourth proportional to 112,667.77, 168,990.70 and 29,561.77 is: 44,339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,667.77 : 168,990.70 = 29,561.77 : x
  2. Step 2: Convert to fraction form
    112,667.77/168,990.70 = 29,561.77/x
  3. Step 3: Cross multiply
    112,667.77x = 168,990.70 × 29,561.77
  4. Step 4: Simplify right side
    112,667.77x = 4,995,664,205.54
  5. Step 5: Solve for x
    x = 4,995,664,205.54/112,667.77
  6. Step 6: Final answer
    x = 44,339.78

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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.