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Finding the Fourth Proportional to 112,671.44, 155,476.08 and 67,340.48

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Solution

The fourth proportional to 112,671.44, 155,476.08 and 67,340.48 is: 92,923.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,671.44 : 155,476.08 = 67,340.48 : x
  2. Step 2: Convert to fraction form
    112,671.44/155,476.08 = 67,340.48/x
  3. Step 3: Cross multiply
    112,671.44x = 155,476.08 × 67,340.48
  4. Step 4: Simplify right side
    112,671.44x = 10,469,833,855.72
  5. Step 5: Solve for x
    x = 10,469,833,855.72/112,671.44
  6. Step 6: Final answer
    x = 92,923.58

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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.