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Finding the Fourth Proportional to 112,863.80, 169,295.70 and 100,616.60

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Solution

The fourth proportional to 112,863.80, 169,295.70 and 100,616.60 is: 150,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,863.80 : 169,295.70 = 100,616.60 : x
  2. Step 2: Convert to fraction form
    112,863.80/169,295.70 = 100,616.60/x
  3. Step 3: Cross multiply
    112,863.80x = 169,295.70 × 100,616.60
  4. Step 4: Simplify right side
    112,863.80x = 17,033,957,728.62
  5. Step 5: Solve for x
    x = 17,033,957,728.62/112,863.80
  6. Step 6: Final answer
    x = 150,924.90

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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.